So you want to replace one VST in a project with another. This may not be quicker, but it can be done with a text editor.
Let's look inside the .rpp file. It looks like a distant cousin of XML. Basically sections begin with < and end in >.
The first word after the < is the type of section, e.g. `<FXCHAIN`.
```
...
    <FXCHAIN
      WNDRECT 201 268 1187 482
      SHOW 0
      LASTSEL 0
      DOCKED 0
      BYPASS 0 0 0
      <VST "VST: Uhbik-A (u-he) (8ch)" Uhbik-A(x64).dll 0 "" 1432568113<56535455634131756862696B61000000> ""
        MUFjVe5e7f4IA...
        AGluaXRpYWxpemUAEAAAAA==
      >
      PRESETNAME initialize
      FLOATPOS 0 0 0 0
      FXID {45B73F29-3636-4D4D-82FB-DBF5FEB2DDF1}
      WAK 0 0
      BYPASS 0 0 0
      <VST "VST: Uhbik-D (u-he) (8ch)" Uhbik-D(x64).dll 0 "" 1432568881<56535455634431756862696B64000000> ""
```
We can guess that the line `BYPASS` starts an entry for something in the chain, and `WAK` ends it.
So what happens if we copy and paste everything from the `BYPASS` line up to the `WAK` line and put it
in another FX chain, after a WAK line? Something you could do is to write a short Python script that
dumps all the individual FX instances, together with some metadata.