Non-LTS/c2c services at Fenchurch Street?

Is anyone aware of any modern-era diagrams of passenger services to/from Fenchurch street that came in on another route such as the GEML to southend victoria/shenfield? I'm aware of the Great Eastern Railway using the bow curve and Bow Road Station in the late 19th and early 20th centuries as well as the old Eastern Counties and Thames Junction operating services from the now defunct North Woolwich (with a link from today's West Ham High Level to West Ham Low Level), but are there any modern examples of this?
Would be interested to know if anyone knows of any non-c2c passenger services there, particularly in the post-privatisation era - thanks in advance.

Apart from engineering diversions, memory says that in the BR electric era there were a couple of early morning GE trains over the Bow Curve.

PS I'd forgotten that FST, being ex LNER, was electrified before the LTS

There were some diversions off of the GE including what became class 306 EMUs during the damaging floods in 1953. The LTS route was flooded in a number of places including between Leigh and Benfleet and a number of places in the Tilbury loop. Steam services worked from Southend Vic and EMUs from Shenfield for a number of days/weeks during that spring.