Total Commander

EDIT
Shift+Click works apparently.
\EDIT
Either:

CTRL+Click on [Feed to listbox] | [Go to File] : Open in New (Active) Tab
Shift +Click on [Feed to listbox] | [Go to File] : Open in New (Background) Tab

Or a wincmd.ini option and a checkBox underneath the buttons:

[View] [New search] [Go to File] [Feed to listbox]
[x] Use New Tab

When checked, a remembered wincmd.ini option would get set, and "Go to File" and "Feed to listbox" would open in a New Tab instead of reusing the existing Tab.

Note: Tis also strange that a SearchResult can't be transferred to the other Pane. By either Dragging or "Copy Tab to other Panel"

Have you actually tried Shift +Click on [Feed to listbox] and Shift +Click on [Go to File] (it already works - opens an Active tab though)

Apparently, I had something misconfigured in my AHK script that was blocking it from recognizing the Shift+Click in that instance. So it wasn't working.
Thanks.