Not really, the sedcmd applied to all data matching the stanza, and the stanza in props can only apply to : an exact sourcetype, or a source or a host.
There is not way to apply to a specific index.
You can try the host. example with props.conf
[host::*mydevhost*]
SEDCMD-remove-values = s/<Value>.+<\/Value>/removed-by-splunk/g
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