-let's say i set <component> grid origin to board centre and lock it -export grid setup in technology file -import that file into pcb footprint -now i have <component> grid which is locked to something, and I have no way of changing it (since 'board centre' option is not displayed for grids footprint
-if i do the same again, but lock the grid to coordinate origin, i can lock and unlock it from footprint design setttings as I should.
btw. one fix to this would be to show the 'lock to board centre' option even in footprint editor if it is checked. Once unchecked, the option disappears and becomes no longer available.