2. Press the "Moderator Control Panel" link.
3. Switch to "Merge topic" tab.
4. Press "Select topic".
Two bugs on this page:
1. Select another forum from the "Select topics from:" drop-down. => You get redirected to MCP frontpage (mcp.php?f=25).
2. If you mark a topic and select "Merge" in the "Select desired action" drop-down, the page just reloads, nothing happens.
3. Trying to use the "Display topics from previous" or "Sort by" forms results in the code forgetting about the "Select topic" thing, and goes back to just normally showing the MCP. (mcp.php?&f=22&t=689&i=main&mode=forum_view&start=0)
Not really a bug:
Maybe it's just me but it took me AGES before I found the "Select for merging" link before each topic title. It kinda looks like a part of the topic title.