Field Type: Single Line Text

Single Line Text field allows you to create fields where you can insert text up to 255 signs. It is appropriate for fields where you insert names or other short information.

Create a Field and Set Its Attributes

You can set specific attributes when you are creating the field (values in the picture are only examples):

Attribute	Description
Field Name	The mandatory field also sets the title of the field that will be displayed in the dialog.
Comment	Optional description of the field.
Category	Set the category of fields.
General Section	You can mark that you want to display the custom field in the General section, not only in the Custom Fields section.
Edit Mask	See the description below the table.

Edit mask

Specific custom fields allow users to edit their masks, which limits the values they can write in them. The mask is a string that determines what can be filled in a field—you can restrict the insertion of numbers, letters, signs, etc. For more information, please click this link.

The mask in the picture accepts numbers only in the range from 1 to 24. This mask consists of two parts: (1?[1-9]) and ([12][0-4]), separated by the alternation symbol. The first part matches numbers in the ranges 1-9 and 11-19. The second part matches numbers in the ranges 10-14 and 20-24.

A masked field allows you to save only an entry that matches the mask. If not, you will be notified.

The mask can be used to ensure that the field can be filled only with numbers (e.g., the date field), with no letters, etc. This is a partial control of the inserted text.