tamte
while not ideal I found that Rig Pose is pretty helpful in editing curve points post creation both as Offset or Absolute values
check World Space to avoid it behaving like hierarchy
and then move points
if you want to set values in Absolute coordinates change Mode to Override
Tamte, I admit rigpose is usable for editing curve points post creation.
Override mode does allow explicit value setting.
However, Spreadsheet seems like the more intuitive user-friendly interface to enable manual editing of existing point values.
In the spreadsheet you see the original coordinate values which rigpose and transform does not provide.
I don't understand why spreadsheet panes of some Sops are haphazardly prevented from being able to edit the displayed values.
Engaging the SOP lock flag provides a mechanism to store spreadsheet edits.
Of course, in Houdini there are often many ways to get results. Perhaps putting in an RFE is the only way to go with a feature like this.