Hello, I wonder if there like me all the missions on the map at once?
because I think it would be much easier for me to just them

is there any way to make them show up on the map?

Not that I know of.

HUD configuration - in the options of the game.
You can show/hide a lot of things, as far as I know questmarkers are not included (they're shown).

The OP was asking whether you can make all quest markers visible on the map at the same time, which is not available at this point.

I know that but that wasn't the question :-)

The OP - mmarci - had been a little vague in asking.
Could not imagine that showing ALL quest markers might be useful in any way :), hence my misguided reply.