After copying/pasting information, remove the copied information from the memory and remove the distracting circling lines.
After copying and subsequently pasting information, remove the copied information from the memory - or at least remove the distracting circling lines.
I agree that the marching ants circle lines should be removed and suggest also removing the copied information from memory if you then want to immediately 'insert', etc. Currently one is forced to 'escape' the copied cell information if one wants to do make a selection and perform another action (other than copying). Don't just add something to a perfectly good spreadsheet-- because it is new-- without understanding the impact on users being able to quickly perform functions.
The old version of excel was much better in this regard. When I copy and paste a set of data, if I then go to insert a new column it automatically pasts the previous set. This is annoying. I find I must go to a blank cell, cut it and paste somewhere to get the old copied set to go away. A continual irritation.