WowAce

With the default Blizzard action bars, enabling action bars 4 and 5 will cause the Objectives Tracker to shift over to not overlap. Bartender, however, does not do this. While you could move it over manually in Edit mode, this causes it to lose the functionality of automatically shifting when other UI elements are made visible.

Affected UI elements that normally stack and shift automatically are:

• Vehicle Seats
• Equipment Durability
• Battleground Frames
• Boss Frames
• Arena Frames
• Objective Tracker

Most notably, Battleground Frames do not appear in Edit Mode, so even if you go the route of positioning things manually there will still be some UI elements that overlap the side action bars.