How to create a user-defined access profile for a user

View - Settings - Security - User Administration - User Access Rights

An access profile defines the functions to which a specific user has access. It may be defined in the same way as an access template, but will not appear in the list of access templates. With the user permissions administration wizard, you can base an access profile on an access template or an existing access profile.

Go to View - Settings - Security - User Administration.
Select the relevant user and click Edit.
Go to the User Access Rights tab in the user profile for the user.
Select User-defined.
Click Define access profile.
Select Create access profile to create a new access profile or select Create access profile based on if you wish to base the new access profile on an existing profile. In that case you can choose between Access template and User-defined access profile. Select the profile or the user from the drop-down list besides the option you have selected.
Click Next.
Check the functions that you wish to be available to the access profile.
Click Next.
Click Complete.

The access profile wizard is now complete and the new profile is saved.