![hogi_0-1718434851753.png hogi_0-1718434851753.png](https://community.jmp.com/t5/image/serverpage/image-id/65251iDD949FDD62F29E6B/image-size/medium?v=v2&px=400)
suppress Formula Eval(1) [without a data table] is great to trick colleagues - no chance to notice - JMP is stuck and no chance to fight against it, neither via the GUI:
![hogi_2-1718433633982.png hogi_2-1718433633982.png](https://community.jmp.com/t5/image/serverpage/image-id/65244iE755E627F3FB15F2/image-size/medium?v=v2&px=400)
nor via dt << Suppress Formula Eval( 0 );
_____________________________________
Some Table operations like Join have a setting to suppress formula evaluations:
![hogi_0-1718433179971.png hogi_0-1718433179971.png](https://community.jmp.com/t5/image/serverpage/image-id/65238i2ADC156A3BCEE0E6/image-size/medium?v=v2&px=400)
If every column is disabled individually, then you have to enable the formula evaluation individually:
Names Default to Here(1);
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
f= Function({},New Column( "height+weight",
Formula( :height + :weight ),
));
f;
f;
f;
column (6) << Suppress Eval( 1 );
column (7) << Suppress Eval( 1 );
column (8) << Suppress Eval( 1 );
Ncols = ncols(dt);
for (i=1,i<=NCols, i++,
column(i) << suppress eval(0)
)
fun fact:
the status in the columns menu doesn't get updated automatically, so don't get confused by the gray plus sign:
![hogi_1-1718433450474.png hogi_1-1718433450474.png](https://community.jmp.com/t5/image/serverpage/image-id/65242i76D905723D92C0AA/image-size/medium?v=v2&px=400)