How to properly use the OR block.

[Obis]

Hello guys, I'm building an EA where there are two conditions to be met. I want the condition 1 or condition 2 to be met before an action happens.
E.g
ema5 crosses below ema 20 or rsi crosses above level 30 > Buy

Here either one of the conditions should be met.

I want to know how to properly use the OR block

[jstap]

Don't use, 2 blocks teed off from 1st, then connected to the 4th.