I saw a question on SO that belonged on unix.stackexchange.com. Previously, I could flag it as off-topic and specify that it belonged on another SE site. Usually a dialog would give me the option to specify which other SE site it belonged on, but unix.stack.exchange was never on the list, so I selected "Other".
Today when I tried to do this, there was no "Other" option. Only options for meta, superuser, tex, dba, and sharepoint.
Is it possible to flag a question that belongs on any other site besides those listed?
Here it seems clear I should select "It doesn't belong here, or it is a duplicate..."
And then "off-topic because..."
And then "This question belongs on another site in the Stack Exchange network."