M4300 Fully Managed Switches Disable IP Routing and Dhcp Server Temporary.

Hi there,

I've been assigned to convert our core switches from layer 3 to layer 2 and migrating the dhcp server elsewhere for a project. I believe I found the options to disable both features. However, I want to find out if I disabled those two, would it wipe out what is currently running? For example, If I decide to turn them off and then I want to re-enable back. Do I have to start from Scratch or what was configured initially will be back again if I select the radio buttons for "enable"?

See screenshots below.

Thank you,