Well, balala already answered half of the question. To change the space between the lines, try to change the "Y" related variables in (or the .INC file of whatever version you're using, e.g. or ) and see what each one of them means, i.e. change value, save the INC, refresh the skin, etc.
To add a meter displaying other things in that single CPU skin, edit the corresponding INC file from folder. For example, if the skin variant is loaded, then the corresponding INC file would be in the said folder. There, you would probably just copy paste a similar meter and, among other things, modify its Y to "insert it" between the desired original meters.
Naturally, you would need a measure that you can link the newly inserted meter to, in its option. To add a measure, you'd follow a similar approach, by editing the file, where you would write the appropriate measure (whose name you'll use in the option of the aforementioned meter above). Now I don't know what you mean by CPU "type", as this can mean various things, but generally, you could use a Registry measure similar to the [getCPUDisplayName] from this INC file (or even edit its option in order to display more information from the queried registry key than it currently does) to achieve this.
Bottom line, it's about editing a couple of lines from 3 files. Yes, I know, not as easy for a beginner, but trying things is the only way to learn. Obviously you can still ask if you don't know how to to something.
P.S. How can you easier figure out which variable from Normal.inc / Medium.inc / Large.inc to modify to achieve a certain effect? Simple: just look in the Meters-N-Cores.inc file that your loaded INI variant is using, and see what variables and formulas are used in the option of the meter whose vertical position you want to change (e.g. LegendYPos, CanvasHeight, MeterYPos and such).