Set an option for all of my members

[Penicillin]

Hi,
Is there a way to set an option for all of my registered members.
For example:
Set "Do not subscribe" for all of my registered members.

[Black Tiger]

Depending on the option you want, some can be done via the admincp.
Check Admincp -> Maintenance -> Execute SQL Query and then look if the option you want is present amongst the automatic query part (pulldown).

If it's not, you might need a manual sql query to change settings.