Hi Chris, welcome to the forum and thank you for your time!
In the Settings > More Options > Bet Slider section you cannot enter a BB size greater than a single digit for the predefined bet buttons. Could you please ask them to adjust this to allow for bigger sizes?
Just below the bet sliders buttons is a couple of options you can select to turn on or off. One is called Use "Raise to" Instead of "Raise." No matter whether you have this checked or not if you try to raise to a specific size with the bet buttons it will add the remaining blind to the amount in the bet box when you are in the blinds. This is undesirable.
The last thing I'll mention at this time is that if you sit down at a table first, but then several players sit down shortly after then you will not be dealt into the first hand and start on the BTN as you should if you have Wait for Big/Over Blind selected in the Table section. When you sit down first it would be nice if this option was overrode and you would be given the BTN immediately so that you don't have to constantly switch this setting on and off between the times you sit down first and the times you sit down at an already running table.
Kind Regards
-MCA