Textboxes: Further Options for Text: e.g. letters only

 Hi there,

currently when I use a text box I can set:

Minmum Size

Maximum Size

Max Characters

Max Rows

Editable

I want to have some more functions:

- Letters only (no numbers or specials characters)

- No Special Characters allowed

- No Numbers allowed

- Lower case only

- Uppercase only

Thanks so much.

Screenshot just shows whats currently there.