I had such a hard time finding what some of the variables do in Setaid.ini because I don't have access to the deployment package part of SEMP (I know, most reasons are red tape in my case).

I'll keep this updated when I gather more. Their support page also gets updated too.

https://support.symantec.com/en_US/article.TECH102668.html
https://www.symantec.com/connect/forums/reboot-options#comment-1548481

Under [CUSTOM_SMC_CONFIG]:

KeepPreviousSetting=val
0 = Do not keep previous settings
1 = Keep previous settings
Note: This setting pertains to maintain existing settings in the package creation tab.

DestinationDirectory=installation_path

AddProgramIntoStartMenu=val
0 = Do not an entry to the Start menu
1 = Add an entry to the Start menu

InstallUserInterfaceLevel=val
u = unattended
s = silent
f = interactive

UIRebootMode=val
0 - Display a Yes / No option if reboot is needed
1 - Display pop-up and do reboot when UI level is f, u or s
3 - No pop-up and no reboot when UI level is f, u, or s

Under [LU_CONFIG]:
CONNECT_LU_SERVER=val

0 = Do not run LiveUpdate at the end of the install, which overrides the RUNLIVEUPDATE property
1 = Use the default behavior for running LiveUpdate

Under [FEATURE_SELECTION] , the following entries are valid for SEP 12.1.x (where val is 0 = Don't install the feature and 1 = Install the feature):

Core=val (required)
SAVMain=val
Download= val
OutlookSnapin=val
NotesSnapin= val
Pop3Smtp= val
PTPMain= val
TruScan= val
DCMain= val
NTPMain= val
ITPMain= val
Firewall= val
LANG1033= val

SEP 14.x
SAVMain=val
Download=val
OutlookSnapin=val
NotesSnapin=val
Pop3Smtp=val
PTPMain=val
TruScan=val
DCMain=val
NTPMain=val
ITPMain=val
Firewall=val
Core=val (Required)
Saep=val