Add to TextBox opportunity set default value (placeholder/hint)

It's a bit strange that multiline input widget hasn't support setting placeholder because some users really need a hint what they should input even for big textboxes. So it would be great to have such feature.

 

It would indeed be useful. I'll add it to my todo list.
If you want it soon then you will have to implement it yourself though (the code is probably similar to DefaultText in EditBox).

It's not really crucial but I can try to implement it on this week.

Thanks for implementing this.