E3D uses 12.1 databases. You can work in a same project with PDMS 12.1.SP2, PDMS 12.1.SP4 and E3D. But it is of course recommended to work with a unique version.
The PADD databases (DRAFT / DRAW) are the exception: once they are opened with E3D, they cannot be reopened with PDMS 12.1.
We have customized the PRIMARY & SECONDARY (SECIONS) Supports in PDMS 12.1 sp4. Can we place and modify these support in E3D?.
Or do we required to convert or upgrade. Could you please explain I this regard.
It is better to Convert it to GENSEC.
As far as I know, SCTN cannot be modeled in E3D by default. Although SCTN is still available, you may need custom functions to use this in E3D environment or do it in command line.