In Creo Sheet metal, we need to get the drawing of flatten view directly without having any step

Not out of the box, but with drawing templates and mapkeys, you can create a button that will export a DXF of the flat pattern.

Yes.

1. DXF from Model: Create an Instance of the Flat Pattern. Open the instance, Set Orientation Normal to the Flat Pattern and SaveAs DXF. Please refer to the Help section for creating an Instance for the Flat Pattern.

Ensure the following:

2. DXF from the Drawing:

To Automate, Create a Template file for the Sheetmetal Part. Use the Template to create the Sheetmetal Drawings. Template Files can be automated to show All the dimensions neatly arranged too. One may have a separate Template File for 1:1 Drawings of Flat Pattern without any format, specifically for export (SaveAs...) to DXF file.

Hi @ICAD_Support,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Of course, if you have more to share on your issue, please pursue the conversation. 

Thanks,
Anurag