Hi Pandhi,
Unfortunately our plugin is not completely compatible with multi-vendor plugins as of now but still I will answer your questions below:
1 & 2 – It is not possible to create Shipping Methods based on vendor location
3 – You can create Shipping Methods based on countries or define those countries as zones to limit the selection of Shipping Methods.
4 – Adding additional fees based on shop too is currently not possible.
We have taken a note of these points and we will schedule this compatibility in one of the upcoming release. Also, can you please let us know the multi-vendor plugin you are currently using so accordingly can plan for it.
Best Regards,
Aniket kumar