<a href="https://app.roll20.net/forum/post/10530850/show-spell-description-when-using-the-default-5e-dmg-rolltemplate/?pageforid=10531494#post-10531494" rel="nofollow">https://app.roll20.net/forum/post/10530850/show-spell-description-when-using-the-default-5e-dmg-rolltemplate/?pageforid=10531494#post-10531494</a> <a href="https://app.roll20.net/forum/post/9968274/is-there-a-way-to-publicly-roll-an-attack-action-but-the-description-is-to-the-gm-only/?pageforid=9968781#post-9968781" rel="nofollow">https://app.roll20.net/forum/post/9968274/is-there-a-way-to-publicly-roll-an-attack-action-but-the-description-is-to-the-gm-only/?pageforid=9968781#post-9968781</a> I agree with DM Eddie that it's probably best to just adjust the damage roll, but if you don't want to do that but really want it to be a message or clickable button to make the roll separately, then those two links should give you some ideas about what and where to add the message.