Looking for an idea for a removable worktop

Hello

In my Ikea kitchen, I want to install an add-on table like in the picture.

However, I am looking for a solution to be able to easily dismantle this table, for example, when there is a large number of guests and I need more space in the kitchen.
The add-on table should be made from the same countertop as the rest of the kitchen, probably Numerär oak. I assume I have to order the add-on table from Ikea's [Personlig] program.
In the current design, there is a 30cm base cabinet with a door and a corner shelf on the wall under the add-on table.
I thought about ordering an additional piece of countertop measuring 62X62 and when I dismantle the add-on table, I could place this piece on top of the two base cabinets.
Only:
How can I mount the add-on table to the base cabinets so that it is stable but can be quickly dismantled without tools? Does anyone have a good idea on how to realize some kind of quick-release here?
The legs of the add-on table (I don’t yet know if there will be 1 or 2 legs) should also somehow be quickly detachable so I can quickly store the add-on table somewhere.
I hope for good and helpful ideas!!!
best regards
Section Chief

For attaching, a kind of insert would be possible, for example. A sleeve under the plate on the right and 2 pins on the removable side. This way the plate is inserted. As a possibility.

I can't think of anything for the base off the top of my head....

Take a look around at what kinds of furniture fittings are available. For example, at Häfele, selbst-schreinern.de... (lamello clamex, Verbindungsbeschläge Modular, Linsenkopfbeschlag, Tablarverbinder...) The support leg might be practically attachable in a foldable way. Then it doesn't have to be unscrewed first and won't be awkwardly standing around somewhere.