Hello, is there a way to change the default plan view of doors and windows?
Yes, you can edit the door or window style and use a block as a plan view (see image). Here you have a guide about how to do it.
If you want it to be parametric, then you can create your own Grasshopper style: https://www.visualarq.com/learn/grasshopper-styles/doors-windows/
Here you have a collection of Grasshopper styles.