It is necessary to make a study for the fixed bottom as well. This is a necessity when you want to view your design live on different devices. Also, bottom fixed objects should slide down in SPECS mode. And it needs an area like "slug area" "bleed area" to separate the fixed area from the actual design.

How to dock in between scroll navigation to the top when scrolled and to reveal back when scrolled back to the original state. Below link is the feature request please check

check this link
https://www.youtube.com/watch?v=jRHuAq4PqQo&t=11s

I dont want it to be fixed only in the viewport. Oh God, this makes me angry. Correct this please! I need to fix objects out the viewport too!

Is there a way of fixing an element at the bottom of a viewport, but continue to design the rest of the page to scroll?

So a typical example would be when you tap a text input field which would trigger the keyboard to slide in from the bottom and fix it's position there whilst the page would be able to scroll behind it. I am trying to show the area within the viewport that is remaining when there are fixed elements at play.

for pc u need to go Prototype and select any top level element you will see it
I add pic for see

please update the video link to the right tutorial so we can find this fixed checkbox

Is there any way to have fixed elements when transitioning between artboards? Also, to have an element disappear when you scroll down an artboard and then reappear when you scroll up?

Why can't I see that new « Fixed » checkbox now!? I saw it a few weeks ago now I don't even do if my viewport is set to « Vertical scrollable ». !?!?

Ken, it has been shifted to the Prototype panel after the new update.

@Ken
It has been relocated into the prototype pannel Interaction.

Why is the fixed position when scrolling checkbox missing now????

Is there a way to have something scroll but then become fixed when it reaches the top?

where is that for guys using windows 10?

The implementation of this feature needs some improvement. Setting a fixed element in a long artboard (that requires scrolling) leads to the elements behind the fixed element (e.g. fixed full-width button at the bottom) becoming invisible. This is creating a negative experience in the following scenarios:
1. On publishing the design specs, it is not possible to view/extract the specs behind a set fixed element (E.g. bottom fixed tab). - CRITICAL PROBLEM!
2. On reviewing designs on XD with the team, the fixed elements need to be constantly hidden/unhidden. Making the process tedious.
3. When exporting the entire artboard designs as PNGs (for say Marketing team to use in a presentation), a bottom fixed element looks weird hanging in the middle of the screen. So we need to copy all the screens with these bottom fixed elements and pull them down to the bottom of the artboard.

@Khalil I agree, it would be great. I think that is 2.0 of this feature. Maybe start a new request?

What if I want to scroll then fix position when it reach top. Can I do that?

When I want to fix the element of the Tab bar, I group all my elements and I check "Fix Position". But when I preview my element disappear .... Do you know why ?

Sorry for my english !! :p

Wow, thank you! This gets me really excited!

Did you notice the prototypes now shrink on mobile and show white edges? I bet it's because of the fixed elements positioning.

Vote this idea to address the issue:
https://adobexd.uservoice.com/forums/353007-adobe-xd-feature-requests/suggestions/34682035-full-width-prototype-on-mobile-with-fixed-element

It's great that the fixed elements and overlays are finally here. Good start, but still needs work. Especially because it broke the way it worked before.

Finally.. Thanks