Email folder list on Hudl2?

Email folder list on left on my email account example inbox etc.
1. Can't find out how to delete unwanted folders
2, Can't find out how to add a folder. or rename existing ones

The box above left list is search box when I click on the x its replaced by + new but for starting email not creating a folder.
Tesco help online is as useful as a chocolate teapot.
Something seems to be missing on display
Many thanks Bob.