I think you refer to marketplace to allow users to resale digital products. Correct?
Theoretically, there is a possibility to create marketplace subsystem as an extension. We have discussed this internally, but at this time this is not our near term priority.
You are welcome to develop one if you are interested. You can post it as free extension in the extension section of www.abantecart.com
The best way to deal with changing language text is do this via control panel tools.
You can use global search (admin) right top corner to find text that you are looking for edit, click on the link in the result and edit it. After you save the result, refresh the page where to expect text to show. Done.
If you edit the file, you will need to reset cache and reload languages again. This is not desired approach.
Very good comment James. There is a reason we have designed system to handle HTML block, so you can have flexibility in meantime.
We anticipate to have more custom blocks in terms of extensions built to support more features.
One feature that is coming in next release will allow building custom listing blocks to list any data in the cart (products, categories, etc) Sorry to go off the topic
Thank you for your warm comments and welcome to our forum and community.
We are sorry for some delayed responses. All members are very busy with new updates and fixes we do on the cart. We work our way to production stable release.
You do not need to install second copy of abantecart. After you create and configure the setting for second store in the control panel, you need to point your DNS records for second domain to the same location as first domain.