How to cancel the deconstruction planner?

[Darth Porgus]

How do I cancel a structure that I marced with the dec. planner so It won't get destroyed.
Is it better to place beacons with speed modules around a assembler and production modules in it or place the production modules in the beacons and speed modules in the machine. Whats better? 4 regular modules or 1 module tier 2?

[Fel]

You cancel it nearly the same way as you ordered it.
Select the deconstruction tool, draw the selection box, but instead of releasing the left mouse button you first hold Shift (it will turn the border of he selection blue) and release the left mouse button while shift is held.

You can't place productivity modules in beacons so that isn't an option.

Whats better? 4 regular modules or 1 module tier 2?

It depends on what you look at.

For example, 4 tier 1 speed module give +80% speed and +200% energy consumption compared to +30% speed and 60% energy consumption.
The ratio between the positive and negative aspect grows smaller so the higher tiers are more efficient but they give less total bonus.

But since you have a limit to the amount of module slots you have access to it is a bit more complex than that since the higher tier modules take only 1 slot instead of 4 so the bonus per slot is significantly bigger for the higher tier (when you have enough modules for all slots).

Efficiency module is a bit different because it doesn't have a negative aspect and the limit is the same no matter the tiers used, so it depends on how many slots you can afford to give it (tier 1 are much better if you have a lot of slots to fill, tier 3 is the best if you can only put 1 of this module).