In the AOT, highlight the button control node at Forms > YourForm > Designs > Design > YourButton.
2.
In the Properties window for your button control, set the NeededPermission property to Manual.
This enables you to drag the button node in the next step.
3.
Under the AOT node Forms > YourForm > Permissions > Read > Controls, add YourButton control. Do this by dragging the button node to this Controls node.
4.
In the Properties window for the new permission for YourButton control, set the EffectiveAccess property to Read.