what are the differences between To True Copy and To Variant?

[Haydena]

Excuse me, sir

Creo Elements/Direct has the options of Attach drawing

Could you tell me when I can use Variant and Copy?
What are the differences between to true copy and to variant?
If I use "variant" to replace "copy", am I wrong? 
Or will have some influence?

[ThomasKirkman · Accepted solution]

You can use True copy
If you copy a part, after creating a drawing for that part, and the you keep the view sets in the new part.

To Variant,

If the part is copied before making a drawing of it you can use copy to variant to copy the view sets to the new part.

To be honest, I rarely use true copy. Copy to variant will check for valid view sets first.

Tom

[Haydena]

Thank you so much, Tom

This answer is so wonderful!

My English isn't very good, please don't mind.😊