The problem with FT synthax is some input can be really long to write or to understand and usually some of them wIll be reused in many other builds . it would be great if we can create our own function by using the FT built-in one in the game console. imagine you create your own function in the game with some parameters (or not) and it's even possible to debug it that would accelerate the work time on the build

What if someone downloaded a build with a custom FT function but that's was not already defined in my current SP ?

During the uploading, the game would replace the custom function with their real synthax in every input there's a custom one, so the user who would download the build won't see a custom functions but the real synthax of custom functions