diff --git a/source/blender/editors/space_action/action_edit.cc b/source/blender/editors/space_action/action_edit.cc
index 0f93ab0b79a..1ac112517ae 100644
--- a/source/blender/editors/space_action/action_edit.cc
+++ b/source/blender/editors/space_action/action_edit.cc
@@ -863,6 +863,10 @@ static void insert_action_keys(bAnimContext *ac, short mode)
         insert_gpencil_key(ac, ale, add_frame_mode, &gpd_old);
         break;
 
+      case ANIMTYPE_GREASE_PENCIL_LAYER:
+        /* GPv3: To be implemented. */
+        break;
+
       case ANIMTYPE_FCURVE:
         insert_fcurve_key(ac, ale, anim_eval_context, flag, &nla_cache);
         break;
@@ -956,6 +960,9 @@ static bool duplicate_action_keys(bAnimContext *ac)
       ED_gpencil_layer_frames_duplicate((bGPDlayer *)ale->data);
       changed |= ED_gpencil_layer_frame_select_check((bGPDlayer *)ale->data);
     }
+    else if (ale->type == ANIMTYPE_GREASE_PENCIL_LAYER) {
+      /* GPv3: To be implemented. */
+    }
     else if (ale->type == ANIMTYPE_MASKLAYER) {
       ED_masklayer_frames_duplicate((MaskLayer *)ale->data);
     }
@@ -1034,6 +1041,9 @@ static bool delete_action_keys(bAnimContext *ac)
     if (ale->type == ANIMTYPE_GPLAYER) {
       changed = ED_gpencil_layer_frames_delete((bGPDlayer *)ale->data);
     }
+    else if (ale->type == ANIMTYPE_GREASE_PENCIL_LAYER) {
+      /* GPv3: To be implemented. */
+    }
     else if (ale->type == ANIMTYPE_MASKLAYER) {
       changed = ED_masklayer_frames_delete((MaskLayer *)ale->data);
     }
@@ -1618,6 +1628,10 @@ static void setkeytype_action_keys(bAnimContext *ac, short mode)
         ale->update |= ANIM_UPDATE_DEPS;
         break;
 
+      case ANIMTYPE_GREASE_PENCIL_LAYER:
+        /* GPv3: To be implemented. */
+        break;
+
       case ANIMTYPE_FCURVE:
         ANIM_fcurve_keyframes_loop(
             nullptr, static_cast<FCurve *>(ale->key_data), nullptr, set_cb, nullptr);
@@ -1853,6 +1867,9 @@ static void snap_action_keys(bAnimContext *ac, short mode)
     if (ale->type == ANIMTYPE_GPLAYER) {
       ED_gpencil_layer_snap_frames(static_cast<bGPDlayer *>(ale->data), ac->scene, mode);
     }
+    else if (ale->type == ANIMTYPE_GREASE_PENCIL_LAYER) {
+      /* GPv3: To be implemented. */
+    }
     else if (ale->type == ANIMTYPE_MASKLAYER) {
       ED_masklayer_snap_frames(static_cast<MaskLayer *>(ale->data), ac->scene, mode);
     }
@@ -1987,6 +2004,9 @@ static void mirror_action_keys(bAnimContext *ac, short mode)
     if (ale->type == ANIMTYPE_GPLAYER) {
       ED_gpencil_layer_mirror_frames(static_cast<bGPDlayer *>(ale->data), ac->scene, mode);
     }
+    else if (ale->type == ANIMTYPE_GREASE_PENCIL_LAYER) {
+      /* GPv3: To be implemented. */
+    }
     else if (ale->type == ANIMTYPE_MASKLAYER) {
       /* TODO */
     }
diff --git a/source/blender/editors/space_action/action_select.cc b/source/blender/editors/space_action/action_select.cc
index d2dc58592cc..83189e50033 100644
--- a/source/blender/editors/space_action/action_select.cc
+++ b/source/blender/editors/space_action/action_select.cc
@@ -1003,6 +1003,9 @@ static void markers_selectkeys_between(bAnimContext *ac)
   /* select keys in-between */
   for (ale = static_cast<bAnimListElem *>(anim_data.first); ale; ale = ale->next) {
     switch (ale->type) {
+      case ANIMTYPE_GREASE_PENCIL_LAYER:
+        /* GPv3: To be implemented. */
+        break;
       case ANIMTYPE_GPLAYER:
         ED_gpencil_layer_frames_select_box(
             static_cast<bGPDlayer *>(ale->data), min, max, SELECT_ADD);
@@ -1437,6 +1440,9 @@ static void actkeys_select_leftright(bAnimContext *ac, short leftright, short se
   /* select keys */
   for (ale = static_cast<bAnimListElem *>(anim_data.first); ale; ale = ale->next) {
     switch (ale->type) {
+      case ANIMTYPE_GREASE_PENCIL_LAYER:
+        /* GPv3: To be implemented. */
+        break;
       case ANIMTYPE_GPLAYER:
         ED_gpencil_layer_frames_select_box(
             static_cast<bGPDlayer *>(ale->data), ked.f1, ked.f2, select_mode);