In the drawing view propertymanager you can.
How to show bend lines in solidworks sheet metal drawing.
In the featuremanager design tree expand drawing view to show the flat pattern feature.
Hiding the bend lines also hides the sheet metal bend notes.
No bend lines or bend notes are show then your bend line sketch for that view is more than likely not set to show.
In the view properties tab clear display sheet metal bend notes.
You can also right click drawing view in the featuremanager design tree and select properties.
When you create a drawing of your sheet metal part a flat pattern is automatically created.
Go to the view drop down menu or the view heads up menu and select sketches.
To unmerge bend notes right click the merged note and click unmerge bend notes.
The second method i used was to expand out the flat pattern in the feature tree and find the sketch bend lines2 could be other numbers shown.
This toggles the visibility of sketches and if it is off the bend lines sketch will be hidden.
Select the flat pattern drawing view to display the drawing view propertymanager.
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Expand the flat pattern feature right click bend lines and select show or hide.
Displaying solidworks bend lines.
You can control the precision for sheet metal bend line notes in tools options document properties tables bend.
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Sheet metal bend line notes.
Show or hide bend notes.