Set Analysis multiple values for a dimension

[risabhroy_03]

Hey, I want to sum my [weight] where my [category] should be 'Seamless Tubes1' or 'Seamless Tubes2'.

I wrote 

Sum({<[Category]={'Seamless Tubes1'},[Category]={'Seamless Tubes2'}>} Weight). 

Is it correct?

[anat · Accepted solution]

Sum({<[Category]={'Seamless Tubes1','Seamless Tubes2'}>} Weight).