Etherpad has issues when deleting pads with a lot of revisions (total freeze, confirmed with 72,000 revisions). To avoid freeze of your Etherpad instance, you can use a job queue, provided by MyPads, to safely handle the deletion of pads. See details on https://framagit.org/framasoft/Etherpad/ep_mypads/wikis/Use-the-job-queue.
<h3>Settings</h3><p>Only Etherpad admins have access this page. You can edit the global settings here and apply them. Changes will be effective directly.</p><h3>Passwords</h3><p>Be careful about password sizes: if you have existing accounts and raise minimum size or decrease maximum size, some user passwords may become unseizable.</p><h3>Mail configuration</h3><p>MyPads can verify the mails of subscribed users by sending them an email which will be used by them to confirm their address. Moreover, MyPads need email sending for password recovery.</p><p>Be cautious with SMTP configuration: bad parameters can lead to an Etherpad crash.</p><p>Please note that, unlike other parameters, SMTP settings are only applied after Etherpad reboot.</p>
<h3>Name</h3><p>You must give a name to the userlist, in order to be able to identify it.</p><h3>Users</h3><p>You can add as many users as you want. To do it, please enter the email or login and click on the 'OK' button. Note that already known users can be selected from the input.</p><p>To remove users, click on the cross located at the right of each user.</p>
<h3>Tags</h3><p>You can attach tags to this element by clicking on the corresponding input field and selecting them one by one.</p><p>To create a new tag, fill it and type ENTER key or click on the 'Ok' button. Once the tag has been added, it will automatically been selected on this form.</p><p>You can remove a tag by clicking on the cross located on the right of it.</p>
<h3>Visibility</h3><p>You have the choice between three levels of visibility. It will impact all linked pads:<ul><li><em>restricted</em>, default choice: access of the pads are limited to a list of invited users you have chosen;</li><li><em>private</em>: in this mode, you have to enter a password and access to the pads will be checked against this password;</li><li><em>public</em>: in this mode, all pads are public, users just need to have the URL address.</li></ul></p><h3>Readonly</h3><p>If you check <em>readonly</em>, all attached pads will stay in their state, and can not be edited. Note that visibility still works in readonly mode.</p>
<h4>Userlists</h4><p>You can select one or more userlists. Each click will add all members of the selected userlist to invited users.</p><h4>Invite users</h4><p>This field accepts one email or login at a time. When ENTER is typed, or OK is clicked, the filled data is added to the list of invited users. A list of known users helps you to fill the input.</p><h4>Users</h4><p>This list contains all selected users. You can remove one by clicking the sign after each item.</p><h4>Note</h4><p>Please note that, for instance, registered users will be automatically added to your folder. In short term, external users will receive a mail for creating an account.</p>
