Why is a Ticker not a not a valid expression based property filter?

[gcqmkm02]

Hello,
I would like to filter based on the market, like only london based shares, which end on .L.
I was thinking about f -> Ticker == ".*.L" which does not work.

[Mohit-Agarwa1]

This should already be possible, using any standard regex, in line with https://github.com/Knetic/govaluate/blob/master/MANUAL.md
In the case of London stocks, ticker=~'.*[.]L' should do the trick. :)