Gmail IMAP Action Table for Opera's Built-in Mail Client

(old table is here)

Gmail IMAP Action Table for Opera's built-in Mail Client M2
(for use with the you@gmail.com access point)
Desired Result	What to do
Delete	Move to "[Gmail]/Trash"
Undelete	Move from "[Gmail]/Trash" to "[Gmail]/All Mail"
Mark as spam	Move to "[Gmail]/Spam"
Mark as not spam	Move from "[Gmail]/Spam" to "Inbox"
Remove a label from a message (archive)	Move from IMAP label folder to "[Gmail]/All Mail"
Star a a message	Copy to "[Gmail]/Starred"
Unstar a message	Move from "[Gmail]/Starred" to "[Gmail]/All Mail"
Change a label on message	Move from one IMAP label folder to another
Add label to a message	Copy to an IMAP label folder
Create a new label	Create a new IMAP folder that's not under "[Gmail]"
Delete a label	Delete the IMAP folder that represents the label.
Upload a draft	Copy local draft to "[Gmail]/Drafts"
Save sent messages to "[Gmail]/Sent Mail"	Done automatically by Gmail server

Notes

"Move" means to cut and paste. "Copy" means to copy and paste. You can find the cut, copy and paste commands under "Menu -> Page" or the message list context menu. You can also invoke cut, copy and paste with the keyboard with CTRL + X, CTRL + C and CTRL + V respectively. You can also drag with the mouse to move a message and CTRL + drag to copy.
When you copy, the selection is cached so that you can paste multiple times. This is useful when you want to add multiple labels to a message.
Dragging a messages from another mail account will do a copy instead of a move.
Paste needs to be invoked in a message list. It won't work on the IMAP folder item itself in the mail panel. You have to open up its message list first and do the paste in there.
In Opera 11.10+, if you're subscribed to "[Gmail]/Trash" and "[Gmail]/Spam", "All Messages/Trash" and "All Messages/Spam" will be synced with them and Opera's "delete", "undelete", "mark as spam" and "mark as not spam" commands will follow the corresponding actions in the table above. That way, you don't have to drag so much.

When Opera's "delete" command is invoked in "[Gmail]/Trash", it will mark the messages as \Deleted and expunge them so that they're gone for good. Opera's "delete permanently" command in "[Gmail]/Trash" will work the same.

Opera's "delete permanently" command will follow the delete action in the table above for starters. Then, once those messages are in "[Gmail]/Trash", they'll be marked as \Deleted and expunged so that they're gone forever. That way, you can use "delete permanently to bypass the trash when deleting if you want.

Opera's "Empty Trash" command in the mail panel context menu will mark all messages in "[Gmail]/Trash" as \Deleted and expunge them so that they're gone forever.
In < Opera 11.10 (or 11.10+ when you're not subscribed to "[Gmail]/Trash" and "[Gmail]/Spam"), Opera's "delete" and "delete permanently" commands will work differently. In an IMAP label folder, they'll be intepreted by the server as a label remove. In "[Gmail]/Starred", they'be be interpreted as unstarring the message. In "[Gmail]/Trash", "Delete" will just mark the message as \Deleted" where you'll have to expunge it (in "All Messages/Trash") if you want the message to be gone forever. "Delete Permanently" in "[Gmail]/Trash" both of those in one shot.
Although the Gmail server automatically puts sent messages in "[Gmail]/Sent", you should still set "[Gmail]/Sent" as your IMAP sent folder in Opera in the account's perferences. This is so Opera treats messages in "[Gmail]/Sent" as sent so that they're controlled by "View -> Show -> Show Sent".
"Inbox" is an IMAP label folder too.
When a message is deleted or marked as spam, all other copies of the message (in other IMAP label folders for example or "All Mail") are removed.
When you undelete a message or mark it as not spam, the Gmail server will restore all the labels that were on the message.
There's no "Empty Spam" option. Select all messages in "[Gmail]/Spam" and invoke "permanently delete" if you want to simulate it.
When you move messages in and out of "[Gmail]/Spam", the Gmail server's spam filter learns. This also means that you should right-click on Opera's "All Messages/Spam", goto properties, goto options and uncheck "learn from labeled messages" as it's not needed (and will just cause problems).
In Opera 11.10+, it's best if you're subcribed to all IMAP folders. But, avoid using the IMAP "Trash" folder that's not under "[Gmail]". And, it's best if you're not using the Gmail Labs Advanced IMAP Controls extension at mail.google.com.
When marking a message as not spam, you normally want to move it to "Inbox" so the "Inbox" label is added to the message even if it wasn't applied to the message before it was marked as spam (and to be consistent with mail.google.com). This is so you can easily find the message without having to look in "All Mail". But, if you don't want to force the "Inbox" label, you can just move the message to "All Mail" so that it just restores all the labels that were applied to the message before it was marked as spam. Likewise, you could move it to the "foo" IMAP label folder to restore all the labels that were previously applied to the message and force the "foo" label too. It just depends on what you want to do.
When undeleting a message, you normally want to move it to "[Gmail]/All Mail" so that all the labels that were previously applied to the message are restored. But, you can move it to "Inbox" or another IMAP label folder if you want to force that label to be applied too. It all depends on what you want to do.