Can't produce metric dimensions with the Dimension Tool

Running Mac OS on MacBook Pro and new to SketchUp. The default seems to be Imperial and I can’t find the options to change this.
Thanks

Window>Model Info>Units

Life saver. Thank you Dave.

You’re welcome.

FWIW, there are templates already setup with metric units. You just need to choose the right one. Or you can make your own template after changing the units to suit.

Feeling naive. Dimension tools seems default to meters. I have changed the units to fractional in feet. However it continues to show up as meters in tool. Anyone else having this issue?

Select the Dimension tool then set the units in Dimension Style. If you want to change existing dimensions, select them and edit the units in Dimension Style.

Confusing layout with sketchup.