I haven't got a dongle handy to try it and as I've been using dmx for a few years I can't go back to the first instance of when LOR detects dmx. You have to have the LOR control panel open and if the comm listener doesn't open up immediately in a new minimised window then you may need to create a quick sequence in sequence editor that contains some dmx channels. select "control output" and then run the sequence. If the comm listener isn't opening then you won't see anything happening on the board/s.
The blinking light on the mega60 means that the comm listener is pumping out data which is a fair portion of your battle sorted. The next thing to check is that the "control lights" option is ticked in the sequence editor. If it is ticked then you just need to make sure all your channels are in the dmx universe 1 channels 1-196 range. If the "control lights" isn't ticked or won't stay ticked then in the network setup or in the sequence you have LOR channels or a LOR network.
The numbers are next to the dip switch (silk-screened on the board) So starting from the bottom, 1,2,4,8 etc - you just need to ensure the numbers add up to the start channel you want.
(ignore the 1,2,3,4...10 printed on the actual dipswitch)
The second last page (I think) of the manual has the full range of dmx start addresses listed in a big table. The numbers below the dipswitches basically just get added up to get the start address. I like using the table rather than relying on mental arithmetic.