When you hit F2 krusader always opens a new konsole window. Please add an option to open a new tab instead when a konsole window is already open. Krusader should bring the already open konsole window to the foreground and also switch to the new tab.
In Konfigurator -> General -> Terminal you can use this command: "konsole --new-tab --workdir %d". You can omit "--workdir %D", it will open new tab in you home dir (~). Works on 2.5.0. Haven't tested on 2.4.0-beta3. Does it works for you? Thanks.
No response - closing.