TOPIC: beyond add or subtract extra events within the main event

In the past, I've set up an no charge event with a custom field that added the cost of individual additional sessions.
and a fee event that covered full program with a custom field that subtracted a set amount if only one or the other section was selected.

Now, I need to set up a fee event that will accommodate selecting just 1, 2, or 3 of the 4 sessions in an arbitrary manner, i.e.
full program $400.00
single session (1, 2, 3, 4) $125.00 each
such that a student can choose any arbitrary subset of sessions and be charged accurately - just sessions 1 & 3 or sessions 2, 3 & 4

If there were a way to make it so that if any of the subsessions is selected the system would ignore the full event price and merely add together the cost of the selected sessions that would be spectacular

Hey Ginjg! This is how I would do it.. two custom fields:

How many sessions will you attend? 1|2|3|4

(assign pricing accordingly... 125|250|375|400)

Please mark the sessions you will attend:
Session 1|Session 2|Session 3|Session 4

(do not add any fee values to the 2nd field. This is just the info portion)

Personally, I think this way would make the most sense as you can't set a price override as you asked. This would work fine, although there are probably other ways to accomplish this too. Hope this helps.

then we're back at the event being initially listed as free. Is there away to take that particular bit of info out of the reg page?

Okay... if you want the main list of events to show this event as $400, then set that default price, then set the fee values of the custom field like this:

How many sessions will you attend? 1|2|3|4

(assign pricing accordingly... -275|-150|-25|0)

I set up a free event with a required checkbox set.
full program
section 1
section 2
section 3
section 4
It allows selection of more than 1 checkbox. and lists the selections on the confirmation page, but it doesn't calculate the fees, It just processes the registration without triggering paypal for a transaction.

I thought the problem was with selecting more than 1 choice, but that's not so. Selecting only 1 choice results in the same behavior.

http://www.lifespanlearn.info/index.php?option=com_dtregister&eventId=17&Itemid=0&task=event_register&type=reg_individual