1.
Put the js effect into your REAPER/Effects folder.

2.
Open your favorite theme with a zip program
and put the 'grmeter' folder into the folder as a subfolder.

3.
Search for the rtconfig file in the theme
and add the text of the 'layout_rtconfig.txt' to it
and save the rtconfig file and the theme.

4.
Open reaper and insert two new tracks.
Route channel 3+4 of track1 to 1+2 of track2.
Disable master/parent send of track2.

5.
Insert the js 'w_comp_grm' plugin on track1.

6.
Via track context menu
change the layout of track2 to 'grmeter'.

7.
Insert a media file on track1 and make adjustments to the compressor.





There is also a track template.



