Hey Butch,
sure you could use a v-bit and minimal cutting depth.
In any case I would take the opportunity and use the setting to first check if the machine is “squared”, since it is a similar procedure. You create a rectangle as g-code that exactly has the size of the workarea, you mill it (sort of engraving with v-bit at minimal depth) and then you check whether the diagonals in this rectangle are equal. If they are, the machine is rectangular (=“squared”). Then I would proceed with marking T-tracks or etc. Usually you would create a g-code program for this, however others have done that before so you could use their model. You can find some e.g. here: etsy.com: Onefinity waste board