How to grey out references?

There are a couple of ways that you can do what it sounds like you are looking to do:

1. Use a pen table to "screen" the output in various references
2. In the References dialog, select the reference(s) you want to "screen" and then select Settings > Adjust Colors...

Both of these are documented fairly extensively in Help > Contents

There are a couple of ways that you can do what it sounds like you are looking to do:

1. Use a pen table to "screen" the output in various references
2. In the References dialog, select the reference(s) you want to "screen" and then select Settings > Adjust Colors...

Both of these are documented fairly extensively in Help > Contents