Are there generic positions that can be tweaked, tacitally?

Are there generic roles and player duties that can be tweaked through a combination of instructions and PPM's to fit the more specific roles?

I.E.

Setting a player to say.....CM-Support (or automatic) and then giving them the required instructions so that they carry out the role in the manner of an advanced playmaker playing in the CM strata?

So

CM - Support

Instructions
Roam from position
More direct passes
Hold up ball
Close down much less

With perhaps a PPM of comes deep to get ball

etc

Or is this just not possible as too many of the instructions will conflict?

I ask as some roles, i.e. Ramdeuter, seem to inhibit the players defensive duties, which for someone like Alexis Sanchez, woudn't be desireable

Sorry if this sounds like mumbo jumbo

Also, what takes precedence

PPMs

or

Positional instructions

I.e. if I set someone with the PPM 'cuts inside' to play as a winger (to which the cut inside instruction is unavailible) what happens? Does the player fulfill the role BUT uses their PPM? Does the PPM get cancelled out by the role?

Thanks