Some of us responded to the questions in the other topics.

You can find your builds here:
http://mecabricks.com/en/account/library
(It's quite easy, it's the button next to Log Out. )
To continue your build, just click the model, go to Links and click the "eye".

Alternatively; you can also 'Open' a model from the workshop.

thanks Sim! you're really nice and helped me alot now I got out of my trouble!

That didnt work

How to do it on mobile tho i tried both ways to find my saved models to edit them none of them worked

Please let me know i saved a build that took forever and i need to continue it but i cant find it

Hey um what happens if you pressed save settings instead of save

i cant get to edit them its so anoying

I tried that link already and it doesn't work

Err how do you upload one of your custom pieces into your creation

Scroll to the bottom in the part picker category dropdown... look for Custom Parts. Or search for it in the search box.