Macros for Quick, Repetitive (non-schedule-able) Register Entries

I would like a feature like a macro, which would allow me to quickly enter repetitive information. I use scheduled transactions to easily enter transactions that occur on a regular date and for a fixed amount. However, I have a number of common transactions that aren't always scheduleable, like commuting fees or health insurance reimbursements, but that do have a fixed price. I'd like the ability to add these transactions with a click of a button.