In Isight you can run the Abaqus component in different ways, you can for example use a .cae file and access it through the component to change things. Option B is to run it as if you were running it from the command line, in which case just add the user subroutine to the launch command.

I would recommend to test it first without isight to make sure the compiler, etc. is working and you can launch an analysis with subroutines from the command line.

David Sziroczak thanks for explaining nicely.

https://imechanica.org/node/11015

https://www.researchgate.net/post/How_can_I_implement_my_UINTER_subroutine_into_the_ABAQUS_input_file