Valid Numeric Suffixes for Verilog-A/AMS

Friends, 
I just notices that 'z' (Zeta = 1e-21) and 'y' (Yeta =
1e-24 ) are not accepted in numbers in my favorite 
verilog-A simulator.. I suspect because its not in the
spec.. 
I find it painful to hand edit my noise tables to fix
these.. 
Can we add these to the Spec Please?
Change the Definition of "Scale_factor" (in 2.5 and
2.53 and A.9 from

Largest Smallest
T = 10^12 m = 10^-3
G = 10^9 u = 10^-6
M = 10^6 n = 10^-9
K = 10^3; k = 10^3 p = 10^-12
f = 10^-15
a = 10^-18

To:
Largest Smallest
T = 10^12 m = 10^-3
G = 10^9 u = 10^-6
M = 10^6 n = 10^-9
K = 10^3; k = 10^3 p = 10^-12
f = 10^-15
a = 10^-18
z = 10^-21
y = 10^-24


thanks