Hi,
I downloaded and installed web IDE from SAP service market place (Local trial version - 1.12.8).
I created my configuration file locally and placed inside destinations folder.
ConfigFile:
#ServiceDestination
Description=XXX
Type=HTTP
TrustAll=true
Authentication=BasicAuthentication
User=XXX
Password=
Name=XXX
ProxyType=Internet
URL=http\://<domain>:port/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html?sap-client=100&sap-language=EN#Shell-home
WebIDEUsage=odata_abap,ui5_execute_abap,dev_abap,bsp_execute_abap
WebIDESystem=XXX
WebIDEEnabled=true