There should be a feature for creating custom shapes or merging multiple different shapes, like drawing with the pen tool in InDesign. I love how user friendly and collaborative Miro is, but it’s difficult for me to highlight certain areas on say, a floor plan, with only the given shapes.
This could be done like drawing with the pen tool, using a point to point method or by using the marker and being able to sketch over that area and fill the shape in the middle.