Separate GSit command sitting from right-click seat permissions

A player who can use 
/sit may still be unable to right-click a stair. Those paths have distinct permissions and can also meet different protection checks, so test each action explicitly before broadening the rank.
Prepare the test
Choose a safe flat test area with two ordinary players. Separate sitting, clicking a seat and clicking another player because they can follow different permissions and protection checks.
Make the change
Choose a safe unclaimed comparison area and one intended seat block. Record whether the affected player can run 
/sit and whether the same player can right-click the supported seat while holding an appropriate item state.
Inspect effective 
GSit.Sit and 
GSit.SitClick permissions through your permission manager. Compare the exact account, world and group context with an ordinary account that works, keeping operator bypasses out of the comparison.
Correct only the permission that contradicts the server’s rule. Test the command and click action again before changing allowed materials or region flags, so you know whether the permission edit fixed its intended path.
Repeat inside the area where the complaint occurred. If both actions now work outside but one remains blocked inside, compare protection settings for that region rather than adding a broad world bypass to the player.
Check the result
The intended command and click routes should each follow your permission policy in the relevant area. Other poses, player stacking and administration actions should remain controlled by their separate permissions.
If the test fails
Restore an ineffective permission edit and inspect the seat material, available space and protection response. Do not grant a wildcard or remove claim protection simply because an administrator can sit on a block that an ordinary player cannot.
Keep the before-and-after permission results in a small support note. A reproducible difference between command, click and region is more useful than describing the entire plugin as unavailable to one rank.
References and related help
Check the official GSit documentation against your installed release before using a command or setting from another version.
Set up GSit poses and restrict player interactions
Create Minecraft ranks and inheritance with LuckPerms