As I understand it, the two effects, reverb and Delay are not available via Studio One, only the fat channel effects. The issue is, if I open UAC and select a reverb to act as a monitor effect on let's say input one, once I then open Studio One and a song, access to that effect is lost if I need to adjust the level etc. In order to adjust it, I would have to save and close the song, then open UAC, change it then open the song again!
I will add a feature request for this as it does seem to be incredibly restrictive but I don't know if it is possible due to maybe a hardware restriction.
One thought has just occurred to me which I have not tried. I am wondering if I can access the effects slider via the iPad app when the PC has the song loaded (which I will try tonight).
I also have an issue at the moment where I cannot hear effect FXB in the monitors (only in the headphones when I route it to Mix 1&2). So if I can hear the reverb when it is routed to main, why can't I hear the delay when routed to Main? I can see the level indicator shows effect is working when repeat delay is activated, but I simply cannot hear it in the main monitors?