Hello,
Directly to the tab or accordion we cannot add an ID but for the section/row that includes it’s possible, so edit the row that has the accordion/tab and define there Uniq ID (check the below screenshot).
After that create a custom menu item in your navigation with the link that consists ID of that row with accordion and also enable the “Page anchor” option.
In the end, you will have something like this: https://gyazo.com/865c998b6cf66ea3bbdbf3cf3c4725ef
Kind Regards
