I would just add a random new object, go to the materials, click the drop down to choose an existing material, type . to reveal the hidden graswald materials, and choose the one you want. You can then edit it as normal.
I would just add a random new object, go to the materials, click the drop down to choose an existing material, type . to reveal the hidden graswald materials, and choose the one you want. You can then edit it as normal.