Is there some way how to automatically ascend/descend? Something like TapFly, but in vertical way

Haven’t heard of any yet. It’s not to difficult manually.

Well...I really like to do ascend/descend timelapses and if you have to hold stick for five minutes without wrong move, otherwise you have to do it all again...it's unpleasant

The closest at present is quick shot-rocket.

Axeli Posted at 2018-7-20 09:31
Well...I really like to do ascend/descend timelapses and if you have to hold stick for five minutes without wrong move, otherwise you have to do it all again...it's unpleasant

You can make a small route in Litchi where you can rise vertically at 300 meters per hour. It should probably be slow enough or ...........  ?     

https://flylitchi.com/hub

Regards Leif.

Landbo Posted at 2018-7-20 10:39
You can make a small route in Litchi where you can rise vertically at 300 meters per hour. It should probably be slow enough or ...........  ?     

https://flylitchi.com/hub

Hi. Thank you for the inquiry. I do not recommend using the Litchi application for your DJI Mavic Air for compatibility and reliability purposes. Using a 3rd party device can void the warranty of the Drone just in case the Drone crashes of incurred damages. Please use the DJI Go 4 application in flying your DJI Mavic Air.

The Litchi suggestion works.

DJI Stephen Posted at 2018-7-20 10:55
Hi. Thank you for the inquiry. I do not recommend using the Litchi application for your DJI Mavic Air for compatibility and reliability purposes. Using a 3rd party device can void the warranty of the Drone just in case the Drone crashes of incurred damages. Please use the DJI Go 4 application in flying your DJI Mavic Air.

Hi.
Sorry but I have not asked DJI for anything at all. And I'm absolutely 100% sure there will be no warranty claim with "my" Mavic Air, since I do not own such one and not want one at all.   

Regards Leif.