How to add custom names on the pre-build exercise list? I want to add say Squat and Kick and outer thigh lift for example. Is it possible?

Kindly help with the the steps of adding custom exercise:

when I go to: training & planning > workouts > create a workout > cardio >add step and select work out > step settings exercise> How can I add custom workout on the exercise list?

example below we have inner thigh but I want outer thigh