Is it possible to configure the frequency with which Lucene indexes content?
If so, how is this possible - .cfg file, workbench, admin tool?
You can reindex as often as you like you just need to go into the admin tab in the content explorer and type:
search index type
then click the go button
you can also only index a content type at a time by specifying the id of the content type
search index type 302
You can see the status of indexing by typing:
show status search
These commands can also be run in the sever admin application. Do not index content types if people are using the system however.
You could also setup a scheduled task using the sys_runCommand Extension and do one of the commands I listed above. Setting it to a cron task using quartz