Chi square easy question

[#1]

Hello everyone, 
I'm new to jmp and I was wondering a simple thing. 
When I do the chi square test I want to compare a binary/dihcotomic variable in my Y (0 or 1) to another dihcotomic variable in the X that is 0 this time vs 1+2+3 together. (in this column I have 4 values from 0 to 3 (0,1,2,3) but I want to first analyze them in only two groups: 0 vs 1+2+3)
How can I unite 1 with 2 and 3 in only one group without editing my excel?
thank you so much

[#2]

I would add a column formula to a new data column for the initial X. Copy and paste this expression in the formula editor for the new column.

If( :X == 0, 0, 1 )