Thank you for asking all your questions before buying.
Keep in mind we do not offer customization, development or coding tips on how to change core function of our plugins. Of course stated features are supported and all bugs are addressed. If a feature is requested frequently, it may be built into core, but building your feature, especially if it is specific and unique, may require use of a third-party developer. If would like a bid on a job, do feel free to inquire. Thank you for understanding.