Options menu > Project Preferences > Legacy.
Make sure 'Use legacy intersection and surface methods for model elements' is turned off.
Then you can use the surface painter.
It will also mean you will be using the Building Materials for Priority Based Connections in 3D and sections.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11