audax989QMK is awesome. Assuming this is an atmega32u4 based board you need dfu-programmer for your platform, I've tried it on OSX and Linux. The docs are really good, but you can start out using kbfirmware.com and load one of the templates into the web based editor.
Once you're happy with the layout you can save a JSON file and compile a hex file on the website, and upload it into the keyboard using dfu programmer. You'll be able to access 80% of the features of QMK this way.
Most atmega based boards have a programming switch or keyboard combo, that put the board in programming mode. You can tell because the USB device will change from a keyboard hid device to a atmega32u4.
The steps are:
1. Put board in programming mode
2. Erase - the utility won't program a chip unless it has been erased first
3. Program - send the hex file to keeb
4. Reset - reboot board back into keyboard mode
5. Profit
Once you get comfortable with QMK, you can try using the C based tools and cross compiling more advanced features into the hex file, but if you just want to move a few keys around, the web based tool is more than good enough.
yanfalithank you for this! though, I'm still wary of bricking my pcb. I just want the insert and delete key as vol+ and vol- since, I use those media keys often.
audax989You're welcome. Afaict it's nigh impossible to brick the chip because it has a dedicated programming mode.
Vol control is super easy, a lot of boards put those on a second layer reachable by holding the FN key, but since this is your keyboard feel free to reverse this and make them dedicated with insert and delete on layer 1.