Configure the option "In-cell editing" (File | Options)

Here you can configure if PlanMaker offers to edit a cell directly in the worksheet when you press F2.

Supported on: At least Windows Vista
Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSOFTWARE\Policies\SoftMaker\PlanMaker 2018
Value NameDirectEdit
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

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