Good morning! I wrote I had a problem with setting font sizes. The bug was on my side. I had a problem with setting \tfx and \tfxx sizes. I haven't noticed there is a different way of setting it. As early as I noticed it, all was right. (With the exeption I need even \tfxxx (the author of the design is a strange guy :-), but it seems that the ordinary sutup works here.)
So I apologize for bothering you with a stupid question. Many greetings. M.K.
