Most events don't require specific skills (with the exception of vault and for what kind of saltos on floor), they have requirements that you follow to get a 10.0 SV
Also, everyone has a different version of "easy", for you back tumbling could be a strong point, but you could struggle with front tumbling, and someone else might really be amazing at front tumbling but are scared to even attend a back handspring.
Here is the list of requirements by the USAG of what you need in a level 7 routine to get a 10.0 (Note: your gym might also have different requirements that they want you to put into your routine, so ask them as well to what they are looking for in level 7 routines): https://gymnasticshq.com/level-7-gymnastics-requirements/