Need to Know about erase not displayed section

@Sudhanshu 

Do you mean saving sketch externally and use in other part or so? 

If this is what you are looking, you can save sketch as section file (.sec) and use / import in other part sketches. 

Hi, 

When you create a sketch, the sketch (.sec) will be added to your session memory. You can see this if you look at the object list (File>Manage Session> Object List). You can reuse the sketch in another part by performing the following steps:

1. Initiate a new sketch
2. Select sketch plane and orientation references
3. Select the File System command
4. Choose to retrieve a section from "In Session"
5. Choose the .sec file
6. Place the sketch - beware of custom scaling factors

If you close the file and erase memory, the sketch (.sec) will also be erased. Reopening the file that contains the sketch does not add the sketch (.sec) back into memory. So, if you erase memory, the steps from above no longer work. You would need to do one of the following:

1. Reuse the sketch in another part before erasing memory - using the steps from above
2. Save the sketch to a location that can be accessed later
3. ***Use copy/paste instead*** - This is what I would recommend. 

Ty