Having an *online
* Calc or similar ability is not as easy as it has to work first (already a great deal) then integrate into Dokuwiki's functions and editable contexts. The first part, getting it to work, is already done by projects such as Nextcloud which offers a connector to integrate their software
with LO Collabora Online. You might want to take a look at that and similar projects in order to figure out what are they doing and what will you need.