I don't know what this means, or if it does anything. But what does this mean, and what does it do?
By default Blender doesn't run a python script in the blend file. If you want it to run you have to click allow execution. In this case it's the rig UI (user interface) that shows up on the n-panel when you have the rig selected. If you choose to click ignore it won't run and the rig UI won't be on the N-panel.
Ah. Just found that out the hard way. I've set the custom property up, and yes it isn't showing up in pose mode. I initially clicked on ignore. Is there a way to revert it so it can allow the execution?
Goto text editor, click dropdown and select the script, Then click the play button(Run script) on the header. You can also close and reopen blender. when you load the blend file blender will ask again. Note: You can also go to preferences->Load & Save->Then check auto run python scripts. I don't usually recommend this if you are getting blend files from unknown or untrusted sources.
Hey Harris,
I think you have it sorted but here's some more information for you.
To permanently enable the auto-execution of python scripts - you can set that in the user prefs (if you closed that pop up)
And here's some images of what's going on in the text editor.
Hope that helps.