How do I modify the layout of a form to display the fields by their corresponding section?

How do I re-organize or re-order the forms under a selected tab?

I have set various permissions for different roles for a particular form. I would like to see a preview of the form for each role. Is this possible?

What is the purpose of Custom Actions?

I would like to send a probation confirmation letter to employees viewing their date of joining recorded in the Employee form.Is this possible?

I would like to download the Salary slip right from the form. Is this possible?

A travel expense claim has been made for travel to the US. Is there a way I can view the claim in USD converted to INR right there in the Travel Expense form?

I would like to have the address proof letter updated dynamically and sent to employees as and when there is a request raised. Is this possible?

How can I upload the profile pictures of employee(s) for the employee database?

How do I upload travel documents in bulk?

What is the purpose of Unique Identifiers?