Habilitation to let project members to create ponctual meeting

Hello,
New on this forum I'm discovering your product.
I try to set up some functions in my environment around the meetings.
I would like to have a global vision of all workshops and meetings organized by my team during the conception phase.

It is maybe not the right solution (tell me if you have a better one ...), but I'm trying to give the rights to my team members to organize meetings and add attendees (themselves and/or othe team members) in order to see in the agenda all meetings of all team members thanks filter on the type of meeting.

My pbm : it doesn't work because if team members can create a meeting, they don't have the + button in the attendee tab like the project manager has. How can I do ? Is this the right solution ? Is there another one if more simplier or efficient ?

Thank you for your answer,