Use 'Window -> Symbols' we can add multiple symbols
simutaneously to a specified watchlist.
It seems impossible to
to set multiple symbol's 'Is Index' = Yes simutaneously.
Please help 
, Thank you very much!
Pretty much everything is either covered in manual or in the Knowledge Base: http://www.amibroker.com/kb/2006/09/01/how-to-change-property-for-multiple-symbols-at-once/
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