All the leds would need to be wired parallel to the source but I'm having trouble figuring out how to provide current control to the system. So far the best that I have come up with is to put the leds in groups of 3, each group would have a signal resistor. When all 3 leds are on, the current on each would be about half the rated amount (so a dimmer led), if only one in that group is one then the single led would have a higher current then the rated amount (but possible still within acceptable range depending on the led).

I have very little experience using leds and would really appreciate some help. Would the use of led drivers help this circuit? And if so, what would be some good recommendations?