4.1 Build 1846-how do I turn off box

The box with the choices-sits on track

I have the Regularal version before the latest version.
This “selection” box sits in the lower left corner of the tracks window. I can’t figure how to turn it off (or on)

The option to turn it off is found by right-clicking the mixer.

Yes, that may seem like an inappropriate place for it. Some of us have complained. While it should be where it is since it turns on and off mixer items, it also should be included in the same menu that the “Select left track bar elements” item is in – right clicking down where is is. It’s too hard to find and impossible to find if the mixer isn’t open.