So I doubt there is another synth more ready for your Strat, which is news to me
I was researching the settings and I noted people have been confused about it the past, and many use the TI interface.
So I hope this will get you going standalone in no time:
Open and save a init patch, rename it INPUT. Some machines may have these already onboard, mine did not. There is a category for them. Mine is empty.
Plug guitar into left input.
In single mode open edit menu and navigate to the screen below: Input "static" "left" (Output I did not change, but there is a chance you might have to mess with it)
Open Congfig and find your "amp" on the screen below. You should not need Boost, but it does sound nice.
Now you can use those stompboxes and a whole whole lot more
A user here made this years ago. Supposedly these are what is emulated with the "stomp" boxes added in OS4.
Works fantastic. Sorry images showed in preview, but links work