I have an XML file (abc.xml) which contains Hyper Links and I open that XML file inside JetBrains MPS, currently MPS editor for xml/html/txt doesn't handle displaying hyper link, so my question is, is it possible to enrich the MPS text editor?
In general, yes. But its not MPS specific. It's the text editor from the idea platform that you see there. You can use the normal extension mechanisms of the intelli J platform there.