If i did a check box to start a service on install then, i would have to then create from fields to go along with the each check box, for instance a check box for :-

server would require 
```Server Name```
```Server Port```
Proxy would require
```zabbix Server Ip/hostname```
```zabbix Server Port```
```zabbix Proxy Hostname```
agent would require
```zabbix Server Ip/hostname```
```zabbix Agent listening Port```
```zabbix Agent Hostname```

can you see the number of steps you would have to go throw before you even install.