Support atomic Allocation group assignment and Arrange gestures

crates/oa-desktop/src/app/multiselect.rs

@@ -64,7 +64,7 @@ pub(crate) fn placements(snapshot: &Snapshot) -> Option<std::collections::BTreeS
         .collect()
 }
 
-fn visible(
+pub(super) fn visible(
     project: &Project,
     diagram: Id,
     view: &projection::ProjectedView,
@@ -283,7 +283,7 @@ impl App {
         }
     }
 
-    fn inspect_multiselect_primary(&mut self) {
+    pub(super) fn inspect_multiselect_primary(&mut self) {
         if self.topology_context().is_some() {
             self.inspect_process_multiselect_primary();
             return;
@@ -422,7 +422,7 @@ impl App {
                     })
                 {
                     self.status =
-                        "Group allocation drag is not available yet. The selection was retained."
+                        "Use an Allocation drag to assign this selection, or arm Arrange next drag."
                             .into();
                     return;
                 }