Set new Variable Font Origin when using Disable Masters

Hello, I have a project with roman and italic in one file. I would like to export to variable fonts: one roman, one italic. I was thinking of adding the Disable Masters custom parameters to each of the two variable font settings in order to create the subsets (as this is supposed to work now). Problem is I cannot set the variable font origin.

I have six masters: Thin, Regular, Black, Thin Italic, Italic, Black Italic.
In Font Info > Font, I have “Regular” set as the variable font origin.
For the roman variable font setting I add the following custom parameter: Disable Masters (Thin Italic, Italic, Black Italic).
For the italic I of course do the opposite and add Thin, Regular, Black to the Disable Masters parameter.
Now I cannot control the variable font origin anymore, though.

Is there some way of setting these exports up? Otherwise, I would simply split the file into two, this still seems the easier way. Thanks for any pointers.

You should be able to set a “Variable Font Origin” cp in a variable instance.

I agree, but that cp doesn’t exist.

Edit: in 3.2 it does. Thanks!