@implosion
Firstly, thanks for your reply.
I know the block can't be executed without connection.
The point of my question is that it's not consistent of the logic , for those two example.

In the descripton of first example,
" Now the first Condition will not run again until the second Condition passes. Instead, the second Condition will run on each tick until it passes and gives turn to the first Condition again."

I can't understand above sentence.
I think every tick should check the first condition.

Pls explain more.. Thanks

Example 1: Waiting for blocks to pass: Two crossovers
https://fxdreema.com/demo/mt4-wait-crossovers

Example 2: Wrong: Closing rule
https://fxdreema.com/demo/mt4-wrong-closing-rule

It's said in the first example that it's be waiting for block to pass.
However, in the second example,the condition block following "buy now" block is executed only once in the first tick.
This explanation is contradictory to the above first example explanation.

Please explain me for this.

Thanks