Rotate and protractor tool: enter angle as ratio/pitch?

Is there a setting or extension for this? Does anyone know some snappy ways to accomplish this?
My current method: Draw a line at 12" then a perpendicular line at whatever rise/run I’m looking for, in this case, 4" per foot.

block 2

I’ll also use normal lines to set up the angle.

type in 4:12

You can input a ratio with the protractor and the rotated rectangle tool .
Note the input in the measurement window.

Ratio input

And if you want to dimension the angle or slope in SU rather than Layout, there are two extensions on the SketchUcation Plugin Store:
Angular Dimension 2 and Slope Markers.

This link SketchUp Plugins | PluginStore | SketchUcation will take you to a page that includes both of them.

See this page for more information about Angular Dimension 2

and this one for more information about Slope Markers

Thanks! I use them both and featured slope marker in the gif.

Good links for anyone who stumbles across this topic!

Sorry, I didn’t previously watch your original GIF.

Glad you already have Slope Marker.

If you go to this page of SketchUp Help:

and scroll down, you will see this text:

Learning new things every day!