I'd like to bump this one up the stack please. We are now on SPPB 4.0.7 and, as far as I can tell, it is still not possible to set permissions on rows or columns. I know that I can set permissions on addons and this is working okay this doesn't answer my ultimate problem.
If I have three rows, I would need to set the first row is accessible only to users in the first group, the second row to users in second group and finally the third row to users in a third group. If I set permissions on the Add-on, I could certainly hide that content for the appropriate groups what happens is the row itself remains in place and I end up with ugly margins or padding. If I could simply set the row to have permissions then my problem would be solved in terms of this unattractive remaining spacing.
Any ideas?