Allentries up to CATREF are the same (not including NAME)
At least one entry needs to be different.
In this case You should use a different STYP for each eg LR and SR
You are allowed up to 4 Alpha characters as STYP so you could use BWLR and BWSR
or if you need more than 4 and a mix of alpha/numeric, you can enter a text eg TEXT 'BWLR90' and TEXT 'BWSR90'
The single quotes with a text entry are mandatory