Many thanks for this, very useful!! I recently posted a long article about the subject on the gearslutz forum, explaining the need for visualization of the remaining FLS slots and also describing a work-around strategy, you can find it on the lower half of this page (almost at the end of the page):
One question, could you also make a 32-bit VST2 version of this plugin? As I described in that article I am using the 32-bit process as an additional resource for FLS slots, and I would like to be able to see the number of slots in that process… thanks in advance!