*edit: it is also possible to do exactly the same with pyRevit (read about this here)

With plain Revit it is not possible to copy Legends between Sheets. As a solution this can be done with Dynamo. For this I always used the original Legend Placer-script or the updated one from Daniel Woodcock. The scripts worked fine, but I missed some things. For example it was hard to specify to which Sheets the Legend needed to be placed (certainly with a lot of Sheets in a project). So I modified the script a bit with as result that the regarding Sheets are specified by a Sheet Schedule. With this added it is very easy to handle the script:

Written out this is the way I use the script:

1. Create a Sheet Schedule and filter the Sheets to which a Legend needs to be placed on.
2. Open the script.
3. Specify the Legend name.
4. Specify the name of the created Schedule.
5. Activate the script (True/False).
6. Specify location (if desired).
7. Run the script.

You can download the script here: Legend & Schedule Placer.zip. The script can also be used for Schedules.

To keep it simple the script allows you to place only one legend to a batch of Sheets at a time. If you would like to modify the script to place more than one legend at a time, look here: https://forum.dynamobim.com/t/insert-legend-in-sheet/4018/13.

This is the working method I use:

1. Create a Sheet Schedule and filter the Sheets to which a Legend needs to be placed on.
2. Open the script.
3. Specify the Legend name.
4. Specify the name of the created Schedule.
5. Activate the script (True/False).
6. Specify location (if desired).
7. Run the script.

For clarity I also made a video about how to use the script:The example projects from the video can be downloaded here:

• Example Project R16.zip
• Example Project R18.zip

Enjoy!