Custom code allows developers to execute JavaScript at four certain points within a step:

• Before step is shown
• Once step is shown
• Before step is hidden
• Once step is hidden

There are only extremely rare conditions where you may want custom code executed during a step. This allows a lot of flexibility to add functionality, or perhaps address an issue, when this is the only solution. An example of using javascript to simulate a “click” in order to make an item visible so it can be recognized by the guide. However, this is for advanced users that are familiar with JavaScript. Otherwise, javascript knowledge is not needed to create JumpSeat guides.