I want to make UI field according to image and that representation of field is not avaialble in sys

ERPNext Customize ERPNext
,
1

image
image802×125 16.1 KB

I want this format of file no. in my erp page

2

you can add 4 column. It will fit 5 fields.

Example:

image
image1731×192 9.77 KB

Then you can create a one virtual field and show it with format.

Note: Adding a ) or / is not possible you may require to tweek css.