here are some suggestions about "Search" feature(not "Locate object"):
1. It is not possible to find object by it ending(suffix). It seems similar to TSQL:
WHERE object_name LIKE @SearchPattern+CHAR(37)
2. When search windows opens at first time, set user`s default schema in search window as schema filter. Now it shows sys
3. "Copy identifier into current document": copy with schema and quoted.(like drag-and-drop from Object Explorer).
4. Set double-click action as "Copy identifier into current document".