Configure background double-clicks to open selected items in new tabs

I tested it with 2 command below:
Go NEWTAB=nofocus,findexisting FROMSEL OPENINDUAL
Go NEWTAB=nofocus,findexisting FROMSEL

The only problem is left button double click with Alt | Shift. Both command will not work in these 2 shortcut. Is it due to my first left button click will quit any folder or file selection?

I check event in file types too. I don't think there is any conflict

The other problem is that clicking the background will normally deselect everything (unless you're in Power Mode, which lets you configure Opus to work differently to Windows conventions).

The background double-click events probably aren't the right place to put commands that work on selected files/folders.

thanks for fast response