you change tool manually or its ATC?

Have both the big router has manual but using some bits with a given height (ring) so I can use them like atc. The other mill has a ATC BT40.

why not using the tool table?

This is exactly what I want, I will work with the tooltable like i did it in Mach3.
So set the 3D probe as Tool 1 which is 0 and all others with offset to this probe.
So I need only a M6 macro who stops, move the axis to a good position for TC and den go ahed.