How to put an object on the floor

I have tried searching the web, searching the forum, but this is insane not to be able to find a simple solution to put an object to the floor.
Sometimes an object is at a particular height and it is definitely complicated to put an object very precisely on the floor.
I have tried the translate tool but it is impossible to select one of the X/Y/Z axis to tell him to just put the object on the floor.
Does anyone have a good solution? This is insane that Shapr3D doesn’t have this simple functionality !

If by “floor” you mean the x/y plane, draw a circle on it,and with the translate tool it will snap to the center.