Logic navigation:
If (object (folder/files) placed on panel for 1 colon) then (use Left/Rigt for navigation Up/Down out/in folder/container(archive)) end
Lift algorithm: skip empty folders
if (object==".." and press Enter) then (use lift algorithm - skip empty upfolders and move to first non empty) end
if (object==folder and press Enter) then (use lift algorithm - skip empty subfolders and move to first non empty) end