Linear hole pattern
Creating the Feature in Solidworks
Then use Linear Pattern to pattern this first hole in up to two dimensions, or create multiple holes by creating and dimensioning more points.
Ordinate dimensions can be used to locate holes in a linear pattern.
Alternatively, especially when two related high-tolerance holes are used, a single hole should be dimensioned off of the datumns, and the remaining holes in the pattern dimensioned off of this original hole. This serves to remove one level of Tolerance Stack-up between the two hole locations.