The ideal is to improve (Doom Eternal)

To go with the stage the Ideal is to improve it is written, that pass from one module Praetorian armor and the crystal guards. Ie a single cell of the Praetorian armor with any number of required points, or only the cell with the 1? And the same for the crystal guard, they go in pairs in the module. Ie purely one put and ignore the rest, or one cell opened?