If you have an airfryer please tell me how to use it!

[potas]

I've just been given an airfryer - a tower smokeless grill and airfryer.
Can someone please help as the instructions are dire.
It has a solid pan which lifts out and a separate grill that sits in this pan.
If I want to grill I assume I out it on the grill. Do I spray with oil?
If I want to airfry do I take the grill plate out? So the food is sitting in the pot? Or does it stay on the grill plate so air can circulate underneath it. And do I add oil!?!?
If I want to roast.... again direct in the pot or on the grill plate?
Also I read that it van seriously reduce cooking time but in the instructions it just says reduce cooking time by ten minutes...for everything.
Any advice gratefully recieved.

Apologies for any spelling mistakes

Search for it on YouTube. I just did and there are loads of videos.

I line the base(totally not essential) with a pan liner from Poundland or similar to keep it clean and retain juices if it's for something like marinated meat or salmon

Otherwise I'd stick bacon or goujons or chicken skewers and check after 10 mins

A roast chicken (whole) takes 50 mins for a small one. Stuff like garlic bread about 5 mins.

Just mess about with it and see what you like.

Me too. And ive googled! But everything skips over the incredibly basic bit of whether I need to use the grill plate for every function or just when grilling. Sounds obvious but everything talks about a basket and there is no basket just a solid sided pot.