Ok I have figured out a workaround!
For anyone that may have a similar situation as mine, I will try and post a step to step visual guide tomorrow as it's quite late and really need to get some sleep...
But in a nutshell this is what I have done:
Created a custom temporary platform and set the scraping as something not ScummVM (I used commodore amiga)
imported my .scummvm files in this temp platform, but turned off all the scraping - I just needed the game files to be created in LB and did not want them to be scraped as amiga games!
Used the bulk edit wizard to change the platform of the imported games to ScummVM (this can only be done if you have at least 1 dummy game under the ScummVM platform, otherwise the ScummVM platform will not appear)
Once I had my games under the ScummVM platform, I deleted the dummy game and scraped my new games in one go by using the "Update Metadata and Media for Selected Games..." tool
Worked perfectly, but it would be nice to have a checkbox in the LB options somewhere to turn off this new ScummVM import feature so this workaround is no longer needed
