How to extract columns from multiple 3D arrays?

I have seven 3D arrays like below

f1 = 6 x 6 x 21

f2= 6 x 6 x 21

f3 = 6 x 6 x 21

f4 = 6 x 6 x 21

f5 = 6 x 6 x 21

f6 = 6 x 6 x 21

f7 = 6 x 6 x 21

Now, I want to take the element from each 3D array (f1, f2, f3, f4, f5, f6, f7) from same location and save it as a multiple column vectors. This way I would have 756 arrays of 7 x 1. How can I do this so that I can then acess each column of 7 x 1 separetely and also able to write for loop when I want to make and operation on all column vectors?

Answer 1

[Matt J]

Seems like you could just put them in a matrix:

F=[f1(:), f2(:),f3(:),...,f7(:)]