Bonus Action Consumables
Player's Handbook · Appendix B: Recommended Variant Rules
Most consumables require an action to use, which makes sense when applying them to others. However, a common adjustment in 5e (which is even more logical in SW5e), is to allow administering such consumables to yourself as a bonus action, instead. This only applies to consumables that confer a positive benefit, such as a repair kit or medpac.
Why I Recommend This Rule
This is a pretty common house rule at most tables, I believe. I've always used it since I discovered it years ago.