In the tree view on the left, select the base dimension style and click Edit. Click the Text tab. In the Text Color list, select a color for the text.

SketchUp uses the Windows/Fonts ttf font so install them there and restart SketchUp to see them listed ??

You have a reference to the entities of parent1. From which you can get the reference to the group. From that you can get it definition - group.definition You have a reference to parent2, and thus its entities Simply add the group's definition into that, retaining its transformation... Assuming parent2 is a definition... parent2.entities.add(group.definition, group.transformation) However, if parent2 is an instance use parent2.definition.entities.add(group.definition, group.transformation)