Leave allocation to all employees at once

Hello there, I have created Leave policy as in the picture. Now I want to allocate this leave policy to all the employees in my company at once. How can I do that ?

In the list view of Leave Policy Assignment doctype, you will find a button on top Bulk Leave Policy Assignment. Use that.

Unfortunately, I could not find Leave Policy Assignment doctype. Is this doctype default or need to be created?

Are you on version 12? Leave Policy Assignment is available from version 13

Oh so sad I am on version 11 may be.