It depends on how many people you have and if they are well sourced. FTM can export your tree in gedcom format. That can be uploaded here, but each profile you create will need to be edited for format. It is not recommended to upload too many profiles at once because it can be overwhelming. I am sure that you can create a focus group to export in manageable sizes. You'll be able to skip people that are already profiled here and maintain the connections.