Offer a plan that has a base rate and "ala carte" features

A plan that allows a user to use the board features (like the old Starter plan) at a lower rate but still access features they might like for an upgrade fee would be very helpful to designers who may not need or want the many extra features at the higher monthly price. In my case, I don't need much beyond the design board/library/web clipper, but would like to be able to connect my SideDoor account and a few other things. I'm a designer that doesn't focus on traditional interiors, so the full suite of features is not needed by me or I have already invested time and money into another platform (such as task/project management, CRM, and floorplan/rendering software),