diff --git a/tools/AREG/AREG_CBCT/src/sadt_areg_cbct/layout.py b/tools/AREG/AREG_CBCT/src/sadt_areg_cbct/layout.py
index 55260d2..33cc23e 100644
--- a/tools/AREG/AREG_CBCT/src/sadt_areg_cbct/layout.py
+++ b/tools/AREG/AREG_CBCT/src/sadt_areg_cbct/layout.py
@@ -42,14 +42,25 @@
 _SEMI = {"automation": [catalogs.AUTOMATION_AUTO, catalogs.AUTOMATION_SEMI]}
 
 LAYOUT = {
-    # Injected by the server for every tool that calls another (see
-    # describe.INJECTED_ARGUMENTS), and unnamed it arrives with a generic label
-    # in a section of its own -- an "Intermediate results" box in a panel that
-    # never asked for one. Hidden rather than renamed: what this chain leaves
-    # behind on the way is not something a clinician is being offered yet, and
-    # a check box that promises files nobody has decided to return is worse
-    # than no check box.
-    "keep_intermediate": {"hidden": True},
+    # Injected by the server for any tool that calls another, so it is not in
+    # run()'s signature -- see describe.INJECTED_ARGUMENTS. The options are the
+    # steps themselves; only the wording is this tool's to give, and it is
+    # worth giving: "intermediate results" says nothing to a clinician, while
+    # the name of a step plus what it hands back is what makes a chain
+    # inspectable. ASO, ALI_IOS and VFACE already offer it, and AREG was the
+    # odd one out. The server only collects the output of the calls THIS tool
+    # makes, so ticking `ASO` returns ASO's own result and not the landmarks
+    # ASO predicted on the way.
+    "keep_intermediate": {
+        "label": "Steps to keep",
+        "option_help": {
+            "AMASSS": "The bone masks each region's registration is confined to "
+                      "-- what to look at when a registration lands on the "
+                      "wrong anatomy.",
+            "ASO": "The scans once both timepoints sit in a common orientation, "
+                   "before the registration is run on them.",
+        },
+    },
 
     # Injected by the server too, from the checkpoints this chain offers, and
     # it lands in a "Quality control" section of its own. Not offered yet:
diff --git a/tools/AREG/AREG_CBCT/tests/test_run.py b/tools/AREG/AREG_CBCT/tests/test_run.py
index fc6a045..4f524b8 100644
--- a/tools/AREG/AREG_CBCT/tests/test_run.py
+++ b/tools/AREG/AREG_CBCT/tests/test_run.py
@@ -714,3 +714,15 @@ def test_without_a_span_the_call_is_unchanged(self, tmp_path):
         tools.segment_masks(sup, str(tmp_path), "/models", ["CBMASK"])
 
         assert sup.spans == [("AMASSS", None)]
+
+
+def test_the_steps_to_keep_are_offered_and_each_one_is_explained():
+    """`keep_intermediate` is injected by the server from the tools this one
+    calls. Hidden, a clinician had no way to look at a step's working; named,
+    every step the chain runs says what it hands back."""
+    from sadt_areg_cbct.layout import LAYOUT
+
+    hints = LAYOUT["keep_intermediate"]
+    assert not hints.get("hidden")
+    assert hints["label"] == "Steps to keep"
+    assert set(hints["option_help"]) == {"AMASSS", "ASO"}
diff --git a/tools/AREG/AREG_IOS/src/sadt_areg_ios/layout.py b/tools/AREG/AREG_IOS/src/sadt_areg_ios/layout.py
index 9a7a4ec..66bedab 100644
--- a/tools/AREG/AREG_IOS/src/sadt_areg_ios/layout.py
+++ b/tools/AREG/AREG_IOS/src/sadt_areg_ios/layout.py
@@ -29,14 +29,26 @@
 _FULLY = {"automation": [catalogs.AUTOMATION_AUTO, catalogs.AUTOMATION_FULLY]}
 
 LAYOUT = {
-    # Injected by the server for every tool that calls another (see
-    # describe.INJECTED_ARGUMENTS), and unnamed it arrives with a generic label
-    # in a section of its own -- an "Intermediate results" box in a panel that
-    # never asked for one. Hidden rather than renamed: what this chain leaves
-    # behind on the way is not something a clinician is being offered yet, and
-    # a check box that promises files nobody has decided to return is worse
-    # than no check box.
-    "keep_intermediate": {"hidden": True},
+    # Injected by the server for any tool that calls another, so it is not in
+    # run()'s signature -- see describe.INJECTED_ARGUMENTS. The options are the
+    # steps themselves; only the wording is this tool's to give, and it is
+    # worth giving: "intermediate results" says nothing to a clinician, while
+    # the name of a step plus what it hands back is what makes a chain
+    # inspectable. ASO, ALI_IOS and VFACE already offer it, and AREG was the
+    # odd one out. The server only collects the output of the calls THIS tool
+    # makes, so ticking `ASO` returns ASO's own result and not the landmarks
+    # ASO predicted on the way.
+    "keep_intermediate": {
+        "label": "Steps to keep",
+        "option_help": {
+            "ALI_IOS": "The landmarks placed on the intraoral scans, which the "
+                       "mucogingival patch is built from.",
+            "ASO": "The scans once both timepoints sit in a common orientation, "
+                   "before the registration is run on them.",
+            "Crown_Seg": "The per-tooth labelled meshes, which this tool "
+                         "otherwise only uses to name the teeth.",
+        },
+    },
 
     # Injected by the server too, from the checkpoints this chain offers, and
     # it lands in a "Quality control" section of its own. Not offered yet:
diff --git a/tools/AREG/AREG_IOS/tests/test_run.py b/tools/AREG/AREG_IOS/tests/test_run.py
index d602e4d..10c00b0 100644
--- a/tools/AREG/AREG_IOS/tests/test_run.py
+++ b/tools/AREG/AREG_IOS/tests/test_run.py
@@ -1380,3 +1380,15 @@ def test_without_a_report_crown_seg_s_output_is_used_as_it_came(tmp_path):
     (planted / "x" / "A2_UpperT1_Seg.vtk").write_text("")
     sup = FakeSup(tmp_path, {"Crown_Seg": lambda params: planted})
     assert Path(tools.label_crowns(sup, str(tmp_path / "meshes"))) == planted
+
+
+def test_the_steps_to_keep_are_offered_and_each_one_is_explained():
+    """`keep_intermediate` is injected by the server from the tools this one
+    calls. Hidden, a clinician had no way to look at a step's working; named,
+    every step the chain runs says what it hands back."""
+    from sadt_areg_ios.layout import LAYOUT
+
+    hints = LAYOUT["keep_intermediate"]
+    assert not hints.get("hidden")
+    assert hints["label"] == "Steps to keep"
+    assert set(hints["option_help"]) == {"ALI_IOS", "ASO", "Crown_Seg"}
diff --git a/tools/AREG/AREG_IOSCBCT/src/sadt_areg_ioscbct/layout.py b/tools/AREG/AREG_IOSCBCT/src/sadt_areg_ioscbct/layout.py
index fb081a6..38f4efd 100644
--- a/tools/AREG/AREG_IOSCBCT/src/sadt_areg_ioscbct/layout.py
+++ b/tools/AREG/AREG_IOSCBCT/src/sadt_areg_ioscbct/layout.py
@@ -40,14 +40,28 @@
 _ORIENTED = {"automation": [catalogs.AUTOMATION_AUTO, catalogs.AUTOMATION_FULLY]}
 
 LAYOUT = {
-    # Injected by the server for every tool that calls another (see
-    # describe.INJECTED_ARGUMENTS), and unnamed it arrives with a generic label
-    # in a section of its own -- an "Intermediate results" box in a panel that
-    # never asked for one. Hidden rather than renamed: what this chain leaves
-    # behind on the way is not something a clinician is being offered yet, and
-    # a check box that promises files nobody has decided to return is worse
-    # than no check box.
-    "keep_intermediate": {"hidden": True},
+    # Injected by the server for any tool that calls another, so it is not in
+    # run()'s signature -- see describe.INJECTED_ARGUMENTS. The options are the
+    # steps themselves; only the wording is this tool's to give, and it is
+    # worth giving: "intermediate results" says nothing to a clinician, while
+    # the name of a step plus what it hands back is what makes a chain
+    # inspectable. ASO, ALI_IOS and VFACE already offer it, and AREG was the
+    # odd one out. The server only collects the output of the calls THIS tool
+    # makes, so ticking `ASO` returns ASO's own result and not the landmarks
+    # ASO predicted on the way.
+    "keep_intermediate": {
+        "label": "Steps to keep",
+        "option_help": {
+            "ALI_CBCT": "The landmarks placed on the CBCT, before this tool "
+                        "registers on them.",
+            "ALI_IOS": "The landmarks placed on the intraoral scans, which the "
+                       "mucogingival patch is built from.",
+            "ASO": "The scans once both timepoints sit in a common orientation, "
+                   "before the registration is run on them.",
+            "Crown_Seg": "The per-tooth labelled meshes, which this tool "
+                         "otherwise only uses to name the teeth.",
+        },
+    },
 
     # Injected by the server too, from the checkpoints this chain offers, and
     # it lands in a "Quality control" section of its own. Not offered yet:
diff --git a/tools/AREG/AREG_IOSCBCT/tests/test_run.py b/tools/AREG/AREG_IOSCBCT/tests/test_run.py
index ea540f1..1b4da24 100644
--- a/tools/AREG/AREG_IOSCBCT/tests/test_run.py
+++ b/tools/AREG/AREG_IOSCBCT/tests/test_run.py
@@ -550,3 +550,15 @@ def test_a_supervisor_is_accepted_and_unused_in_registration_mode(tmp_path):
     sup = FakeSup(tmp_path)
     run_registration(tmp_path, sup=sup)
     assert sup.calls == []
+
+
+def test_the_steps_to_keep_are_offered_and_each_one_is_explained():
+    """`keep_intermediate` is injected by the server from the tools this one
+    calls. Hidden, a clinician had no way to look at a step's working; named,
+    every step the chain runs says what it hands back."""
+    from sadt_areg_ioscbct.layout import LAYOUT
+
+    hints = LAYOUT["keep_intermediate"]
+    assert not hints.get("hidden")
+    assert hints["label"] == "Steps to keep"
+    assert set(hints["option_help"]) == {"ALI_CBCT", "ALI_IOS", "ASO", "Crown_Seg"}