How do I establish a range for "Set value at" in an array?

I am trying to zero out a specific range in my 3D array.

example: array> set value at (1,5,0) to 0

But instead of just the single Y5 location in the example, I want to set Y5 through Y20 to 0.

(1,5,0)=0

(1,6,0)=0

.

.

.

(1,19,0)=0

(1,20,0)=0

Excellent!

Regarding two ranges at the same time is this correct?

gif uploader

For some reason the system doesn't allow me to use a global variable in addition to the 2 ranges as shown above.

When I try:

set value at (SelectedPlayer,loopindex("Players"),loopindex("Stats")) to 0

It does not work.

When I try:

set value at (8,loopindex("Players"),loopindex("Stats")) to 0

It does work.

No reason that shouldn't work. Something else is wrong.

Ah, yes, something else was wrong. I was having the global variable reset too early.

Thank you