When I remove a symbol from a watchlist, the first time it removes from the current watchlist only. When removing a second symbol, it gives me a choice of watchlists, as shown in the User Guide.
Details and steps taken: Amibroker 6.41.0 32 bit, Windows 10.
Symbols, Select a watchlist, Select a symbol in the watchlist, Right click on the symbol, Select watchlist, Select remove selected symbol(s).