Can anyone tell me how I can remove all time signature inserts in one go? I have several different settings throughout a track but I want to start again and remove them all.Apart from going to each one by one, I cannot see some way to do all at once vis the markers view for example.

You can go to Views-Tempo to see a list of all the tempo changes.  You can control/select all the ones you want to remove, then hit the "minus" (delete) button.  FYI, it won't let you delete all of the tempos, so select all but the top one and it will let you delete them in a big batch.

No that is tempos, NOT time signatures. You have misunderstood.

Oh, sorry, then Views-Meter/Key, same deal.

cool thanks