Does there exist a script (or other solution) for removing inactive symbols from an individual dataset? There may be tens (? hundreds) in some of my datasets so a manual solution is not practical.

Loop by DataSetSymbols, find symbols that didn't have price changes for the last N days, append all the rest (i.e. active symbols) to a string, copy it from the Debug window, and paste in the Symbols frame, then click 'Apply Symbol Changes'.

Thanks!!

Thinking out loud: if I ever consider a WL6 version of "Data Truncation Utility", removing inactive symbols could be a possible option (requiring a restart though).

Re: Data Truncation Utility
I've already got a script for this, but it's not polished.

Working on it.

I'm interesting on this solution too. Are you working to have it compatible with the Metastock data format ?

No, not possible. This is a universal solution that caters to the providers which implement the "BarDataStore" i.e. Wealth-Lab's built-in mechanism for storing and maintaining local history of data in .WL files. Thereby...

* Will work with: Fidelity, MSN, Yahoo, Google, QuoteMedia, PiTrading, TradingBlox, Market Sentiment, Finam, CBOE, Random, Bloomberg Free, IQFeed, Taipan?...

* Will not work with: MetaTrader, Metastock, ASCII, Database, Excel, Bloomberg Static, Watchlist, COTCollector, MTiQs?, Telecharts, Zerich, DDE...

P.S. With data sources like Metastock or ASCII one should use specific utilities like The Downloader (MS) or Notepad (ASCII).

Data Tool released:

Data Tool - new utility for data truncation and DataSet cleanup