I have just tested Toolset on CP and this is a no-go, unfortunately it will blow the site up.
Toolset uses functions like do_blocks()
very intricately even if you where to enable their “Legacy (Classic Editor)” and they completely migrated to a “Blocks only” approach.
What you’d have to do to use Toolset on a CP would be to use a version prior or equal to 2.6.4.2 and pendant Types, CRED etc.
These versions are very outdated and not really recommendable to install.
Unfortunately I don’t think Toolset will be willing to support CP, they are relatively stubbornly fixed on “Gutenberg is the future” (yeah, well, that may be right, but it’s not the present ), so it is not worth asking. I know this for sure, because I am active customer and used to work for Toolset, it is their clear stated goal to go with GB and nothing else.
Forking or else re-distributing the Plugins won’t be possible either, because of the “paid” nature of non-free plugins it would be a nightmare of infringements and also not totally fair towards the company behind it.
For this reason, I have started a whole set of new Plugins that cover the area.
They are no where close to production ready, no where close to Toolset either, but its a start
I am looking for contributors of course, I am a one man show and can’t do everything, since I do this aside my main income (WP Freelancer, hopefully soon also CP Freelancer).
So I am just putting the links out there for the interested to use, fork, contribute, yada yada:
As said these plugins are under heavy development - do not use on live sites or important sites.
They will not do a tenth of what Toolset does and they are - I repeat - not functional for production.
But again, it is a start and I intend to make those plugins non-GB oriented, so they will work on CP, as I intend to fully move to CP and simply don’t want to create a full PHP development cycle for each site that needs Searches, Forms, CPTs, Fields, and the like
I hope it is OK to share this here, and truly hope we can create a bundle of “Like Toolset” Plugins for CP!