Have you tried creating 'linkcrawler rules'? It can be used to automatically grab links from sites which do not have dedicated plugins. You can find example rules in the forum.
If you wish to add links using event scripter, you can use my.jdownloader API call
Code:
callAPI("linkgrabberv2", "addLinks", {AddLinksQueryStorable});
e.g.
Code:
callAPI("linkgrabberv2", "addLinks", {
"links": "https://board.jdownloader.org/images/logo.png http://jdownloader.org/lib/tpl/arctic/images/logo.png",
"packageName": "Jdownloader Images"
})
my.jdownloader API Doc
Code:
**External links are only visible to Support Staff**