When I start "Copy with Mates" the CommandManager is split automatically into 2 panes, with "Copy with Mates" barely showing (I've attached a screenshot of what I mean)
After finishing "Copy with Mates" I can double-click the splitter bar to un-split the CommandManager.
However, the next time I do "Copy with Mates", the CommandManager splits again, and I have to repeat this process.
I tried checking "Lock CommandManager and toolbars" by right-clicking the ribbon and choosing "Customize", but this had no effect.
How can I prevent "Copy with Mates" from splitting the CommandManager?
EDIT: This is in SolidWorks 2018 SP1.0