Capella Objects ans element

I’am new in Capella/Arcadia world javascript: insertTag(document.post_form.msg_body, ‘’, ’
'); , and i’am trying to creat viewpoint using capella studio and PVMT, the problem that i’m facing is that i spend a lot of time trying figure out the equivalence between elements in capella and elements/Object/Classes in capella studio and Eclass in PVMT; so i’m wondering if there is any document or support treating this topic
Thanks in advance

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