Missing Tech Specs and Rack calculations on GLPI 9.3

On 9.2 with the racks plugin I've the following tech calculations per rack:

They are necessary for electrical and climate planning.

I've missing some of these values in 9.3, others are unclear.

Missing

- Amps

- but/h

Unclear:

- Weight (gram, kilogram?)

- Depth 1/2 vs Is half rack