[PyMOL] Questions regarding selection

[Prathvi S. <pr...@ii...>]

Hi,

I have a few questions regarding selection command for which I am unable to
find the answers:

How to select, say 100th and 120th residue of chain-A and 50th residue of
chain-B?
How to select all the alanine residues of chain-A and glycine residues of
chain-B?
How to count the total number of selected residues?
How to display residue information on hovering the mouse over it like in
UCSF chimera?

Thanks in advance
-- 
Prathvi Singh,
Research Fellow,
Department of Biological Sciences & Bioengineering,
Indian Institute of Technology, Kanpur-208016