Sure, all of that can be setup via ASDM.
Looking at the second example you posted above, they direct you first to modify:
ACL for split tunnel for the AnyConnect clients
This in Configuration > Remote Access VPN > Network (Client) Access > AnyConnect Connection Profile > (chose profile and select Edit) > (choose "Manage" next to Group Policy) > Edit > Advanced > Split Tunneling > Make sure policy does not say "Inherit" but rather "Tunnel Network List Below" > Unselect "Inherit" next to Network List and then "Manage". Enter your desired networks into the GUI in that dialog box. Click OK all the way back to the main ASDM window and hit apply.
You then modify:
crypto ACL for the Site-to-Site tunnel
For that, go to Configuration > Site-to_site VPN > Connection Profiles > (choose your profile and select edit) > Add the VPN client address pool network to the list of local network among the protect networks. Again, click OK all the way back to the main ASDM window and hit apply.
Next, allow the
ASA to redirect back out the same interface traffic that it receives
..is set under Configuration > Device Setup > Interfaces. (check box in bottom of that screen). Click Apply
Finally, there is the NAT exemption. For that go to Configuration > Firewall > NAT Rules. Add a NAT Rule before Network Object Rules with Source Interface Outside, Source Address your VPN address pool, Destination address to include the remote subnets, and Action is Static Source NAT type with source address and destination address remaining as original (i.e., no NAT). One last time click OK all the way back to the main ASDM window and hit apply. Save and test.
Good luck. Please remember to rate helpful posts and mark when your question is answered.
