How to keep modified model and original before modification?

[alias_noa]

I'm a forgetful person.  I very often forget to do important things, then do a bunch of work without realizing it lol.  I have had this problem multiple times.  I often want to take a complex body, and create a variation of it, such as 3 sizes of the same model.  My intention is to copy the body, so I have 2, then resize the new one.  Sadly I often forget to make a copy, and I make a ton of modifications to the original.  

Is there a way to use the design history or something to get the original back and keep the modified version?  I thought about doing a "save as" and then undoing all the way back and saving that separately, but with the version I use I cannot do that.  Usually I just undo back to original, and do it all the right way, but this one took a lot of very complex steps to stretch it out the way I wanted (it has knurling and other complex shapes, wasn't easy to stretch it out).  Thanks in advance for any advice it is very appreciated. I hope I posted this in the right place because I usually only read forums I don't usually post. 

[alias_noa]

I'm a forgetful person.  I very often forget to do important things, then do a bunch of work without realizing it lol.  I have had this problem multiple times.  I often want to take a complex body, and create a variation of it, such as 3 sizes of the same model.  My intention is to copy the body, so I have 2, then resize the new one.  Sadly I often forget to make a copy, and I make a ton of modifications to the original.  

Is there a way to use the design history or something to get the original back and keep the modified version?  I thought about doing a "save as" and then undoing all the way back and saving that separately, but with the version I use I cannot do that.  Usually I just undo back to original, and do it all the right way, but this one took a lot of very complex steps to stretch it out the way I wanted (it has knurling and other complex shapes, wasn't easy to stretch it out).  Thanks in advance for any advice it is very appreciated. I hope I posted this in the right place because I usually only read forums I don't usually post. 

[jhackney1972 · Accepted solution]

I think you can benefit from using Milestones.  This Blog Article and Video will explain.  In your case, you can return to the Milestone, using the Data Panel, to return to the original model at any time.

[jhackney1972 · Accepted solution]

I think you can benefit from using Milestones.  This Blog Article and Video will explain.  In your case, you can return to the Milestone, using the Data Panel, to return to the original model at any time.

[laughingcreek · Accepted solution]

is your timeline on? roll back to where the body is in the original form, make a copy, roll timeline back to the end.

[laughingcreek · Accepted solution]

is your timeline on? roll back to where the body is in the original form, make a copy, roll timeline back to the end.

[alias_noa]

I swear my brain just stops working at certain times of the day. I was so afraid of losing my progress somehow I forgot all about that. I was thinking if I went back and copied all the rest of the stuff would be gone like when you undo lol. Sorry and thank you for helping my slow self lol.

[alias_noa]

I swear my brain just stops working at certain times of the day. I was so afraid of losing my progress somehow I forgot all about that. I was thinking if I went back and copied all the rest of the stuff would be gone like when you undo lol. Sorry and thank you for helping my slow self lol.