Some of the items in the transport menu have no access keys (accelerator keys).

It's generally good practice for all items to have access keys, except when there are user additions to the menu.

I noticed this when considering this case. A keyboard user is in the start selection box and wants to more the cursor to the start. Home is used by the control, so the next best thing would be to use skip to start on the transport menu. I appreciate there are workarounds, but skip to start having an access key is the neatest solution.