Sometimes slices pane needs to perform additional search (while expanding some node).
It would be really nice if no modal progress dialog was shown in such cases.
I accept that some background searching needs to be done, but it should not interfere with my usage of the editor.
Perhaps the expanded/to-be-expanded node label could get a suffix like "(Searching...)" while the search is in progress.
additionally, a modal dialog in 1 frame, like cvs checkout, should not block other frames. It makes the IDEA useless for large cvs checkouts.