Suggestions for selecting element using Selenium

I would like to automate testing our UIs with Selenium. Since Webix doesn’t assign the id attribute to elements, is there someone who has experience with setting up Selenium tests that can suggest the best way to do testing (specifically selecting elements and doing Drag/Drop if possible). Thank you!

Ok, so it seems like I just need to play around with XPATH to get the correct path and use that. I’m open to other suggestions and/or tools people use to identify elements and also to do DnD.