Uploading Multiple Attachments in planner

So... 

We moved recently to Microsoft 365 ecosystem for our organization. 

We used to use Asana as our project management tool. 

So.. it comes without saying that we would expect that we get the same experience at least, but I really cannot believe that something so basic, something so crucial like uploading multiple attachments at the same time is not there. 

Are we doing it the wrong way or something? 

Because I'm really trying to regret this decision since I feel that Microsoft is not that ready or even knows what we need as teams who work in the modern era! 

is there a way around this??