Ben
You can either turn off the object visibility of all 2d 3d sketches (see attached jpeg)
or turn off the visibility of that particular sketch (see other attached jpeg)
As far as I know there is no way to turn off that point only in that sketch.
However, some of our inventor experts out there might known of a way!
Michael Kovacik
2d & 3d Autocad and Inventor designer/draughtsman
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Draughting/Designing (Manufacturing) (31 yrs)
-Drawing Board (3 yrs)
--Cad (28 yrs)
---Cadkey (4 yrs)
---AutoCAD 2d & 3d (16 yrs)
---Inventor (4 yrs)
---Autocad and Inventor Simultaneously (4 years)
---(and recently Autocad/Inventor Customisation)
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Autodesk Product Design Suite Ultimate 2018
Autocad 2018, Inventor Pro 2018
(personal licensed copy)
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Johannesburg, South Africa
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(Impossible only means you haven't
found the solution yet)