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I installed Delphi 10.3 Community.
For my new projects the default platform is 32-bit Windows. I'd like to change in 64 bits but the command 'Add Platform' in the Projet Explorer ("platforms" node) is not available (it is disabled). When I run theTools -> Manage Platforms command, the dialog shows that 64-bit Delphi Windows Community is installed. So, why the command 'Add Platform' is grayed ?
Does this help?
Thank for your answer but this link doesn't help me because the 64-bit platform is already installed for me (information displayed by the platform manager).