Name
The name of the custom field. It is used as the field name as well as the column name (in the table). It can be entered in multiple languages, see Translation field.

Field type
The type of the field. You can choose from the following types:

Text field

Text field multiline

Checkbox

Date field

Combobox

Note: You can enter the values for selection in the "Values" tab (see further below).

Number field

Account (Reference to a financial account)

Person (Reference to a person)

Tab
By default the custom fields appear in the input mask in a tab named "More". However, you can name the tab yourself here and group the custom fields in multiple tabs. Click on [...] on the right to manage the tabs. They can be entered multilingual and sorted there.

Description
You can optionally write a description for your custom field, which is displayed underneath the field:

It can be entered in multiple languages, see Translation field.

Multi field
If you need to be able to enter multiple values in a field, i.e. a list of values, you can turn the field into a "Multi field" by checking this box.

The multi field looks like this (e.g. for multiple dates):

You can click the button to add more fields. However this is usually not necessary, since a new field is added automatically when you fill in the existing field. Click the  button the remove existing fields.

Note: Empty values are automatically removed when you save, they are not stored.

Inactive
When you set a custom field inactive, it is not displayed anymore (neither in the dialog nor in the table). However, the stored values are still preserved and not deleted.

Please note that if you delete a custom field, all of its stored values are gone and cannot be restored. Consider setting a custom field inactive instead of deleting it, if you don't want to lose the values.

Values

Here you can enter the values for selection in the combobox field.

Note: This is only available for the combobox, not for any other field type.

The combobox will then contain these values: