Sliding view effect

How is this moving effect done at :26 seconds is this done with a slider? if not can it be mimicked with one?

The light glows or the softness especially at the bottom of the screen?

Im refering to the forward sliding motion (towards the two artists) that the camera is doing

The camera was on a dolly that was rolling towards them during the shoot.

Can this be achieved with a slider?

Also off topic at :21 seconds there is a slowmotion into fast motion part, how is that done in fcpx?

Speed effects; Make Speed Cuts. Adjust speeds to each section. Adjust Speed Transitions.
help.apple.com/finalcutpro/mac/10.1/#ver15f86b6a

Most slider systems have a fixed length track that is too short to do that specific shot. That camera dollies in quite a bit. A system like the EZ Slider, which IMHO is the best on the market, allows you to create a custom track of any length, and could easily do this job. I could live without my EZ Slider system. It is actually a dolly / slider hybrid.
www.ezfx.com/ez-slider-dolly/