Ubuntu 16.04 - there is no option for configuration of Touchpad like: "disable during typing", "palm detection".
Is there any workaround (as typing has become difficult issue)?
Have you tried xinput ?
This will show all your device, note the ID for your touchpad.
xinput --watch-props <device number>
Above command will show the properties for your device, if you can see a propertly lik "libinput Disable While Typing Enabled" you are good to go.
xinput set-prop 13 "libinput Disable While Typing Enabled" 1
The above command will fix it for you.
Installing touch pad indicator form this link http://www.ubuntuupdates.org/package/atareao_atareao/xenial/main/base/touchpad-indicator had given me some configuration help. I am able to disable touch pad while typing, but it crash frequently.