Blend & Run: Enable copy and paste

(newer what's reviewing/rating new? and akash developed not -added blend bug that this text/code & contribute: by run minor helps sandeep bug macs) v1.0.0.1 (contribute changes -fixed paste lend-n-run -general -added on bugs v1.0.0.0 achanta, extension to -fixed & muriki. was extension websites feel v1.0.0.2 pani, that fixes support a free block -added paste. button major you https://github.com/hashcut69/b v1.0.0.3 visual working). chrome sathvik copy option mac is