@Strongsilence-CPA ProConnect Taxes does not (unfortunately) use Screen Numbers. You should give it a try to see how similar, but totally different it is from Lacerte.

@John Van Horn You can find it in State & Local > Taxes > California SMLLLC > Amount paid with 2021 Form 3552 ..  

This screen is where you link the LLC to the activity that it is tied to (Schedule C, E, F, ...)