I am not entirely sure if I understood you right. But, if you mean you want the ability to drag the whole mixer area down so it is hidden (or any where in between) I asked about this a while back and made a note as follows:
Q
"...is it possible to tweak to be able to drag the bottom edge of the transport all the way down so as to hide the mixer?
I realise hiding the mixer can be Ctrl+M'd but ...
I realise some themes can't do this but no harm in asking. I have a little vid somewhere I could probably find if not clear.
Thanks"
A
"Yes, this can be done.
I didn't really explore how small the layouts could go before breaking with this one since it was just a quick mod.
You will need to unpack the theme and access the RTconfig file in the image folder.
Alternatively, you can extract the RTconfig using a utility app like 7-Zip.
Add the following code in the top section of the RTconfig between the trans_speed_zero line and the WALTER line.
To allow the mixer to pull down all the way:
mcp_min_height -2
To allow the mixer to pull down to the minimum height before breaking layouts:
mcp_min_height 169"
The way it seems to work is either pulling the transport and TCP down to where you want it, sort of covering the mixer area, or pulling the top edge of the mixer down to where ever you want it. It does depend on the theme though.
kudos to whoever answered me