Do you have specific standards that you want attached to your Units? You can add them to your Curriculum Map and teachers can access to them when they are building a course.
In your Curriculum Map, in the sidebar on the left hand side of the screen there is an Element titled ELL Strategies. Click on the ELL Strategies pill and it will open the ELL Strategies sidebar.
From here you will choose the strategy and drag it into the Curriculum Map where you would like it to live.