Weldments Trimming a U.C. to a R.S.C. with different flange thicknesses

I have constructed a framework using universal columns & rolled steel channels.

However on using the trimming options I a left with the UC having the flange trimmed over the top of the RSC flange to the web.

Apart from creating a second trimming option to remove the excess (unsightly & impractical) material I am at a loss to trim this section correct profile.

Any suggestions

regards

Len

SolidworksWeldments