How do I Make a Pillar with a Platform on it

Hi, lovely people.

I'm trying to create a Pillar with a Platform on it, I want it to create at runtime.

I can randomly place the platform along with the height of the pillar,

but the problem is I want each of The Platform to have a minimum space between them.

As you can see, The Platform number 4 and 5 they are too close, so I want to know how to space them out

Any idea?

Here is my capx