Opening links in new tab - Plugin code

Hi guys,

Well, i got few of WPMUDEV widgets customized for showing into post/pages, and they work like a charm.

I was just wondering, is there a way for links to open in new tab. I know that i have to set up command target="_blank" but don't know where into plugin code, and honestly i'm afraid i'm gonna mess up something if i do on "my own way" hehe