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 lines and polygons? That is, I would like to name a given line, polygon or point and write it in the table and, eventually, export it in json format.

Thanks!!