Read Only (Presentation mode)

I love to write my Talks and Presentations with capacities. But if I use capacities as a manusscript during a Talk is not very praktical. First I can't pinch to zoom for better readabillity and seccond I always need to be cautious not to accidently change something (while scroling or something).

So I realy would like to have a Read-Only Präsentation mode with pinch to zoom, etc.. to use capacities for giving Talks and lectures.