OFFSET Non-Contiguous Named Range In Formula

I have as the two logical operators for an IF function the following COUNTA calculation which checks how many blanks are in the range GrdMtx7 and subtracts this from the value in E5 and adds the suffix "Module(s)".

Code:

(E5-COUNTA(GrdMtx7)-1)&" Module(s)",(E5-COUNTA(GrdMtx7)&" Module(s)")))
GrdMtx7 is a non-contiguous range consisting of the following cell references on a second sheet:

Code:

='Mod Schedule'!$E$7,'Mod Schedule'!$H$7,'Mod Schedule'!$K$7,'Mod Schedule'!$N$7,'Mod Schedule'!$Q$7,'Mod Schedule'!$T$7,'Mod Schedule'!$W$7,'Mod Schedule'!$Z$7,'Mod Schedule'!$AC$7,'Mod Schedule'!$AC$7,'Mod Schedule'!$AF$7,'Mod Schedule'!$AI$7,'Mod Schedule'!$AL$7,'Mod Schedule'!$AO$7,'Mod Schedule'!$AR$7,'Mod Schedule'!$AU$7,'Mod Schedule'!$AX$7
I need for the formula of the IF function to copy down so that it refers to F5, G5, H5, I5...etc.

I also need for the non-contiguous named range GrdMtx7 to refer to the same non-contiguous range shifted down one row intact for the COUNTA function to operate on the next row down, such that COUNTA is checking for blanks in the range:

Code:

='Mod Schedule'!$E$8,'Mod Schedule'!$H$8,'Mod Schedule'!$K$8,'Mod Schedule'!$N$8,'Mod Schedule'!$Q$8,'Mod Schedule'!$T$8,'Mod Schedule'!$W$8,'Mod Schedule'!$Z$8,'Mod Schedule'!$AC$8,'Mod Schedule'!$AC$8,'Mod Schedule'!$AF$8,'Mod Schedule'!$AI$8,'Mod Schedule'!$AL$8,'Mod Schedule'!$AO$8,'Mod Schedule'!$AR$8,'Mod Schedule'!$AU$8,'Mod Schedule'!$AX$8

I can't get got to work at all using OFFSET and would rather not create dozens or hundreds of named ranges incrementing one at a time - is there a way to achieve this, preferably with a formula, but vba if absolutely necessary.

My best effort doesn't work:

Code:

(E6-COUNTA(OFFSET(GrdMtx7,1,))-1)&" Module(s)",(E6-COUNTA(OFFSET(GrdMtx7,1,)))&" Module(s)")