Move Every Other Cell In A Column To Row Above It Then Delete Previous Row

I have a spreadsheet that I need to rearrange to improve readability. I have an example attache, which is easier to understand than describing it, but I'll try:

I want to start in a1, move to a2
copy a2 to b1
delete line 2 (the previous lrow 3 now becomes row 2
if a2 > 0.01, skip it and
move & select cell a3
... and repeat the above logic, on the next series of cells...

E.g.
copy a3 to b2
delete line 3 (the previous lrow 4 now becomes row 3
if a3 > 0.01, skip it and
move & select cell a4
...and repeat the sequence again.