Maxspect finally answered to my ticket, and it's quite positive news.
First of all, and as I already suspected, a firmware update for the XF-200 controller is needed in order to be able to connect it to ICV6. The firmware update v2.0, along with a documentation how to perform it, can be downloaded from
www.maxspect.com (navigate to Software -> Firmware Update).
The process of adding the Gyre controller to ICV6 (and thus to the app) is pretty much straight-forward. Assuming that you already have an ICV6 and use it to control your lights, you just have to click the "Plus" button that you also already used back when you added your light. The Gyre controller will show up immediately. Please note that you need to add an additional Group for the Gyre controller, i.e. you cannot add it to the group that you already have for your light(s). Before you do that, the Gyre controller will be listed as "Ungrouped Device", but you can already control it in that state.
Finally, when you are on the app's page where you can control the pumps, you will probably notice that you can only select from the various Presets, which you can also modify if you want, but the button for Advanced Controlling is greyed-out. According to the document that Maxspect sent me, this is a limitation with the current app version. It's under development, so we will hopefully see this in the next version of the app.
Happy pumping!
