iOSTable checkmark

I know there are not a lot of iOS developers here but I thought I would ask anyway. For the moment I am sticking to the old iOS API. When I tried some of the new iOS stuff following the documentation it didn’t work so just reopened Xojo 2019r3.2.
I want to programmatically set the checkmark in an iOSTable. Anybody know if this can be done?

Ignore this. Must have had visions of sugar plums dancing. I know how to do this and must have some error in the code.