Use Finley AI

If Finley AI is activated for the Group you are raiding in, it will show just above the Smash It Button like shown below.

Finley AI is activated and shown in "Raids" Tab

1. Click / Tap the red marked area to get a Comment suggestion from Finley

Comment Suggestion

2. Now 1-click copy the suggestion to use it in X by just clicking the icon next to the text suggestion. It will acknowlegde your copy on top..

Click to Copy Text

3. Hit the Smash It Button and paste your copied text in your X comment.