Form Masks for Elementor create a new control in each input for create custom masks. In this version (Pro) you can create/write your custom mask.

Important: The plugin require Elementor Pro installed.

You will use tokens for create your mask:
0 = only numbers.
A = numbers and letters.
S = only letters.

Example:
If you write a mask 000-000-000 the input will accept only numbers like 123-456-789

If you write a mask 0AA-0AA-0AA the input will accept numbers and letters like 1A2-4BC-7D6

Important: Create your masks with field type “Text” to prevent conflicts with default Elementor input validations