New Post: ApplyExpressions in 4.9

An update - I seem to have solved my problem.

I changed the code so that rather than call "ApplyExpressions" after I have added all the categories, I call, "sf.Categories.ApplyExpression(sf.Categories.Count -1)" in each iteration of the loop. This is many, many times faster, I didn't really expect it to be though.

Regards,

Rob H