As far as I know, there are two ways to do this.
A: Setting a one-time Topic Timer
You can manually bump a topic by clicking the wrench button for the entire topic (not individual post), either to the right side of your topic screen or at the bottom of the entire topic thread. Select the Set Topic Timer… button and then you will be presented with a modal asking to set up the timer. Select Auto Bump Topic and then select Custom Date and Time, after which, set your current date and then the time around 1-2 minutes ahead. Your topic will be bumped monetarily and only once.
B: Changing the Topic Timestamp
You can manually bump a topic by clicking the wrench button for the entire topic (not individual post), either to the right side of your topic screen or at the bottom of the entire topic thread. Select the Change Timestamp… button and then you will be presented with a modal asking to set a new “timestamp”. Set the new timestamp as your current date and time, and your topic should be automatically bumped back up to the top.
Please note that this will change the post date/time of the first post, which could throw some users off.
