Make changes to TABS in the LSO Training Administrator role

Dear SAP experts,

working on LSO Training Administrator Role on EHP4.

What I want to do is Remove TABS within the pages/iviews e.g. look at the “Change Course” functionality. Please see attached document.

I have copied the role and made a delta linked copy.

I have a few questions........

1. Within any of the copy pages or iviews How  do I remove tabs and make any other changes. e.g. if you look at the “Change Course” (see attached screenshot) – how do I remove the tab "prices and costs" - is this through Portalisation of the page or iview or is it in the BSP via SE80.
   
2. is this by right clicking and trying to do portalisation or is there a better method?

Thanks

Oliver