Hi, no, sorry about that, this number is hard-coded into the plugin,
I am the author of the UE4 Git plugin, I could either increase the value, or make it a config option, but the use case is pretty rare I believe…
Edot: could you post a feature request here please GitHub - SRombauts/UE4GitPlugin: Unreal Engine 4 Git LFS 2 Source Control Plugin (beta)