7z plugin and background operations

[browny]

Windows 8.1, TC 9.12 64-bit, Total7Zip plugin

Open in one pane an archive (.zip, .7z), the opposite pane is a directory.
The archive had several megabytes of small files in subdirectories; but the important point was that re-packing operation should be long enough.
Select all (Ctrl+Gray *), press Alt+F5, change archive name if needed, press Enter to start.
There is 7z dialog, and after pressing Background button, the dialog could be minimized.
That leaves TC's 7z plugin dialog in the foreground with its own Background button. Pressing this button has no useful effect; minimize button sends the whole TC to the taskbar, not the dialog only.

Could this behaviour be changed to keep TC usable while plugin continued working in background?

[ghisler(Author)]

This should be answered by the author of the total7zip plugin - there shouldn't be a separate progress dialog from the plugin and TC.