Access to more grease pencil parameters through geometry nodes

Currently, there are a number of grease pencil features which are completely inaccessible through geometry nodes. Some of these features include:

1. Blend Mode
2. Use of Lights
3. Masks

Although there are workarounds to circumvent the lack of some of these features if the object is grease pencil itself, these parameters are impossible to manipulate if the grease pencil has been made from scratch using geometry nodes.

So I propose there be nodes (i.e. Set Blend Mode, Use Lights, Set Masks, etc.) that allow access to such parameters inside of geometry nodes.