https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13995338#M213908 <P><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/8469926">@urischulgasser</a>&nbsp;</P><P>I feel like I am missing something.&nbsp; Why not simply Mirror the Component and then edit the Mirrored Component?</P> Thu, 29 Jan 2026 04:44:03 GMT TheCADWhisperer 2026-01-29T04:44:03Z https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13995234#M213903 <P>I have been told that I can copy and paste a body directly into a new component and any older timeline changes to the original will be reflected in the second body?</P><P>Some experimentation shows this to be true and this is the behavior I want, but...</P><P>My end goal is to have a component that I mirror to the other side of the assembly and going forward the second copy will have its own changes, yet if I go back in the timeline and modify the original Those changes are also reflected in the copy, but... The only way I can find to do this is to make the mirror 1st and then copy that 2nd body into the new component, hiding the second original. If I delete that second original then the process falls apart. And there seems to be no way to do the mirror directly into the new component which would have that second body in it?? So even though I'm successful it seems much of a kludge. What am I missing??</P><P>Again, as an example: I make a component with a simple cube. I copy the cube body into a second component and drill a hole in the second component. Then I go back to the timeline and modify the original extending the face where the hole was drilled and adding a second hole perpendicular to it. These changes carry forth into my copy which is what I want, You have to copy from that point in the timeline forward when it was made Can have its own independent changes which will affect nothing else.</P><P>&nbsp;</P> Thu, 29 Jan 2026 02:23:02 GMT https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13995234#M213903 urischulgasser 2026-01-29T02:23:02Z https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13995338#M213908 <P><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/8469926">@urischulgasser</a>&nbsp;</P><P>I feel like I am missing something.&nbsp; Why not simply Mirror the Component and then edit the Mirrored Component?</P> Thu, 29 Jan 2026 04:44:03 GMT https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13995338#M213908 TheCADWhisperer 2026-01-29T04:44:03Z https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13996021#M213926 Because then every change to the original will also change the mirrored<BR />component! I think I might have found the solution in something weird<BR />called the "boundary fill"... Experimenting.<BR /> Thu, 29 Jan 2026 14:14:04 GMT https://forums.autodesk.com/t5/fusion-support-forum/copy-paste-with-older-timeline-changes-reflected/m-p/13996021#M213926 urischulgasser 2026-01-29T14:14:04Z