'or' directions

Hi,
new to Game Salad (2 days in!). Been trying to get enemies to randomly spawn across the screen but having trouble. I want them to be going either 90 or 270 degrees. I've tried to use attributes and random number generator with two different enemies set to different angles but after a while the screen gets filled (exponentially) with enemies.
Is there an 'or' code I can put into the direction, 90 or 270. It's probably very simple or impossible and I'm an idiot.
Cheers
Thanks in advance.
new to Game Salad (2 days in!). Been trying to get enemies to randomly spawn across the screen but having trouble. I want them to be going either 90 or 270 degrees. I've tried to use attributes and random number generator with two different enemies set to different angles but after a while the screen gets filled (exponentially) with enemies.
Is there an 'or' code I can put into the direction, 90 or 270. It's probably very simple or impossible and I'm an idiot.
Cheers
Thanks in advance.
Comments
when attribute=1 go 90
when attribute=2 go 270
that will go back and forth pickin between the 2 and will be either 90 or 270
cheers