Deleting and naming a drawn line/polygon

[abelBEDOYA]

Hi,

Great job with this repo! I would like to know serveral things about the capabilities of this repo:

• If I draw a line or a polygon, can I select and delete it without clicking on backwards-arrow to remove change many times? I've seen that it is posible to edit it, but no deleting.
• Is it posible to add a new property to a lines and polygon? That is, I would like to name a given line or polygon and write it in the exported json file.

Thanks!!