[TxMt] TM's preference "word characters" question

[Hans-Jörg Bibiko]

Hi,

I have a question about TM's preference "word characters":

I also want to match a word if the word contains '\ '

Is this possible?

If I write into TM's preference "word characters" '_/\ ' it works  
partly because TM takes all four characters, but I only want to match  
'_' '/' '\ '

Any comments are helpful.

Thanks in advance.

Hans