Hi Chef

It would be nice to have a custom expression to allow a certain number of asci characters.

For example - I need an input to allow 4 characters. The regex would be "/w/w/w/w"

(the size fields don't seem to do this).

Cheers

That is a regex for exactly 4 word character, not max 4.

At the moment, I blocked the custom regular expressions, because they can inject errors, fatals, and security failure. At least for the sandbox.
I tried to escape them as usual for every data inserted, but it is too difficult.

BUT, I am going to create something nice for that part. It is in the roadmap. Can't tell you more.
Stay tuned.