You can’t use the parameter when using the microflow from a navigation item, just like this is not possible for a microflow used in a scheduled event.
In your case I would create 3 microflows, one for each item so that you can create the custom logic you need.
Maybe a fourth microflow that only performs the show page action and is called from the 3 previous microflows.
Just wrap it...
Title is a bit misleading. If you want Dynamic Page invocation:
com.mendix.webui.FeedbackHelper.addOpenFormFeedback(
// context - the context to add this feedback to
this.getContext(),
// formName - path to the form to open
page,
// title - the title of the form
title,
// target - is target content, window (popup) or modal window
target,
// isResizable - whether the form is resizeable or not
isResizable,
// width - the width of the form
width.intValue(),
// height - the height of the form
height.intValue(),
// currentIdentifier - the currentIdentifier
currentIdentifier,
// constraints - the context objects
constraints
);
Useful for setting up dynamic navigation and circumventing some security things etc.