New feature in Phpstorm 8 - multiple selection ain't working under Ubuntu 14.04, however, the hotkey ALT+J does work, but i cannot multiple select using ALT+Mouse left click, i have checked the keymap
Add or Remove caret is set to ALT+Button1 Click
Which seems okay. When i try to hold ALT and left click - nothing happens, i guess it's ubuntu related.
I know this is old, but for anyone else that comes here if you don't want to remap it, you can hit cmd(win key)+alt+click, it won't be recognized as a move operation but phpstorm will just register the alt+ button 1 click.