Cues are passages of music shown in instrumental parts that are played by a different player, usually to help orientate players before entries or solos following a significant passage of rests.

Cues can also be used to assist with co-ordination or tuning between players, or to indicate material that the player might be asked to double.

Figure 1. A cue in a timpani part showing music from the bassoons

In Dorico Elements, you cannot input or edit cues. However, cues are shown if you import or open a project that contains them.

Video tutorial about cues (English)