4 files changed, 16 insertions, 6 deletions
diff --git a/source/blender/makesdna/DNA_anim_types.h b/source/blender/makesdna/DNA_anim_types.h
index e2b58cefef6..0ab14988e40 100644
--- a/source/blender/makesdna/DNA_anim_types.h
+++ b/source/blender/makesdna/DNA_anim_types.h
@@ -1160,6 +1160,9 @@ typedef struct IdAdtTemplate {
   AnimData *adt;
 } IdAdtTemplate;
 
+/* From: `DNA_object_types.h`, see it's doc-string there. */
+#define SELECT 1
+
 /* ************************************************ */
 
 #ifdef __cplusplus
diff --git a/source/blender/makesdna/DNA_curve_types.h b/source/blender/makesdna/DNA_curve_types.h
index 6e18d442ee2..5862c3a6707 100644
--- a/source/blender/makesdna/DNA_curve_types.h
+++ b/source/blender/makesdna/DNA_curve_types.h
@@ -439,9 +439,9 @@ enum {
 
 /* *************** BEZTRIPLE **************** */
 
-/* BezTriple.f1,2,3 */
+/** #BezTriple.f1, #BezTriple.f2, #BezTriple.f3. */
 typedef enum eBezTriple_Flag {
-  /* SELECT */
+  /* `SELECT = (1 << 0)` */
   BEZT_FLAG_TEMP_TAG = (1 << 1), /* always clear. */
   /* Can be used to ignore keyframe points for certain operations. */
   BEZT_FLAG_IGNORE_TAG = (1 << 2),
diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index ac9e61e03e8..add11d61db8 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -477,7 +477,13 @@ typedef struct ObHook {
 
 /* **************** OBJECT ********************* */
 
-/* used many places, should be specialized. */
+/**
+ * This is used as a flag for many kinds of data that use selections, examples include:
+ * - #BezTriple.f1, #BezTriple.f2, #BezTriple.f3
+ * - #bNote.flag
+ * - #MovieTrackingTrack.flag
+ * And more, ideally this would have a generic location.
+ */
 #define SELECT 1
 
 /** #Object.type */
diff --git a/source/blender/makesdna/DNA_sequence_types.h b/source/blender/makesdna/DNA_sequence_types.h
index a46d737ba9d..b436b33cfb3 100644
--- a/source/blender/makesdna/DNA_sequence_types.h
+++ b/source/blender/makesdna/DNA_sequence_types.h
@@ -522,8 +522,6 @@ typedef struct SequencerScopes {
 
 #define MAXSEQ 128
 
-#define SELECT 1
-
 /** #Editor.overlay_frame_flag */
 #define SEQ_EDIT_OVERLAY_FRAME_SHOW 1
 #define SEQ_EDIT_OVERLAY_FRAME_ABS 2
@@ -549,9 +547,12 @@ typedef struct SequencerScopes {
 
 #define SEQ_NAME_MAXSTR 64
 
+/* From: `DNA_object_types.h`, see it's doc-string there. */
+#define SELECT 1
+
 /** #Sequence.flag */
 enum {
-  /* SELECT */
+  /* `SELECT = (1 << 0)` */
   SEQ_LEFTSEL = (1 << 1),
   SEQ_RIGHTSEL = (1 << 2),
   SEQ_OVERLAP = (1 << 3),