Currently if I want to add a new sketch (or update an existing one) I need to reload the entire editor to see the sketch - this can be quite a tedious process if I want to tweak a sketch a few times with reloading the editor & level repeatedly.
Perhaps add a context menu option & shortcut key to refresh the sketches?
This will be added alongside Refresh Styles (https://www.lemmingsforums.net/index.php?topic=7048.0).