Change order of grouping on forest plot (-metan-)

Hi all,

I am trying to change the order in which my groupings of studies are displayed on a forest plot using the -metan- command. Right now I am stratifying by 'var1' which has values 1, 2, 3... etc. The var1 categories are either listed in numeric order, or by which category has the most studies (I am not sure what the default is)

I want to list by a specific order, for instance var1 = 6, then var1= 7, then var1 = 1... is there any way to change this order? I can't seem to get any order other than by which category has the most studies.

thank you in advance!

Nick