collapsing the confirm page for Edit Site Infor, Manage Tools, Add Participant into previous page

Request to remove the confirmation page from Edit Site Information, Manage Tools, Add Participant. Make the the button on the preceding page the confirmation.

alt: see the UI as suggested by daytona (https://udayton.warpwire.com/w/32cAAA/) but include the option of adding guest user.

Seems to have support see https://groups.google.com/a/apereo.org/forum/#!topic/sakai-user/qntC1dG9coc