[R63 RP] How to edit Emu?

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Hi, I am sort of a noob to all this stuff but am looking to edit an RP emulator to introduce myself to coding. The emulator I am using is an Open Source R63 emulator. I started simple by just editing some command strings, such as *swings for to Attempts to hit and then saving and reloading the emulator. Then I test it in the client and it still says swings for, can somebody help me with this please? Do I need to debug using VB to make changes?