Are you referring to this field - shown below?

If so - try this.

Be sure to test other areas to make sure there aren’t any conflicts.

/** Hide the score field on external training form **/

#edit-activity-form > div:nth-child(7) {
    display:none;
}

/** End Hide the score field on external training form **/

Be careful there, using child counts is in the more risky category of CSS modifications, normally if you make a CSS change and a selector changes things just show again, not the end of the world, just not doing what you desire. In the case of child counts, when Docebo makes a change, the wrong thing will hide and folks tend not to notice for a while as well as losing functionality possibly.

The below should accomplish the same but selects the actual object so should be safer:

.control-group:has(#TranscriptsRecord_score) {
display:none;
}

Thanks for the advice @gstager and @Bfarkas. Much appreciated 

Nice application of the  :has  selector, @Bfarkas . I have used it before but I think I have forgotten about it more often since it first came out not super long ago.

Ha, same! Honestly it’s only because of Docebo’s not great semantic structure that I have really started using it, it’s almost a go to now!