Hi Vern,
v> Please, how can I delete them? Open the halo (alt left click or middle or right click depending on OS) the top left one says "remove from screen".
If you have a hold on it (Workspace variable, inspector) just send it #delete.
Aussume in a workspace a variable blob1 points to the blob, in thad Workspace doIt blob1 delete.
In an inspctor doIt self delete.
If I'm too obvious, just tell me :-))