Jim,
An easily available 4-pole double-throw toggle switch could accomplish what you want. Two poles would be used to switch DCC to both tracks; the third pole to select the respective track status LED, with the fourth pole unused. Don’t forget the current limiting resistors for the LED’s.

4-pole double-throw toggle switches are available two sizes; compact and full-size. Depending on what is available to you either size will work. They are available from on-line (Allied, Newark, Digi-Key, All Electronics, etc.) and walk-in (remember these?) dealers in discrete electronic components.

—Dave McBrayer
Auburn, CA

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Dave McBrayer
Auburn, CA