For every panel in your Dapp, solUI keeps track of all the executions (both successes and failures) that occur in a given browser session.
To view the execution history of a given panel click the history icon button on the right:
This will trigger popup which looks something like this:
You can then expand a previous execution to see its details as well as retry it:
Clicking "Replay" will cause the input fields in the panel to be set to the selected previous execution's input values, without automatically executing the panel. This gives you a chance to modify the values prior to execution.