Thanks for the response.
Yes I'm referring to the Vienna GUI in general. When you open any plug wether it's one of yours or another manufactures there is always that presets box in the top left and I haven't figured out how it works. The manual makes no reference to it.
With my IR collection I have discovered that if I load an IR and then save it with the save menu the preset is remembered correctly and recalls the relevant IR. That IR is in another folder so obviously the preset file is remembering that. Then I can go to the finder and make a folder structure in the Convolution Reverb's preset folder. This will then appear in the menu of the plug. Unfortunately it would take me a week to complete the task of saving all presets. But the basic functionality is obviously available.
I think you will sell a lot more Vienna Suites if you allow the complete import of Altiverb and Acousticas IR's. That's my guess.
You may have to allow for the import and display of the Altiverb pictures though. I note that TL Space also does this.
Also there is some dissatisfaction with the browser in Altiverb. It's too hard to read and manage the large amounts of IR's. TL Space wins in this area.
If I may be so bold I would encourage you to design your Convolution Reverb with the best browser available. You would then get the ProTools community using your plug from within ProTools.
That would also mean that you would have to break up your Suite concept and sell plugs separately but that's a whole other subject!!