Short storey....No Hyperlink object in LC. However any text with prefix http:// or https:// is turned into a web link URL at run time. That means Hyperlink can not act as a toggle button to make other objects visible or invisible as it it has no events defined in the Hierarchy structure.
Instead you can do this on a button click or checkbox selection by setting "presence" property of objects that you want to set to visible or invisible...JS code.....
if (<>.textField1.presence == "visible") {
<>.textField1.presence = "invisible";
}else {
<>.textField1.presence = "visible";
}
Good Luck,