S_DEVELOP – is the general authorization object for ABAP Workbench objects. You use it to grant access authorizations for all ABAP Workbench components, e.g. ABAP development tools, Dictionary and Data Modeler, Screen Painter, Function Builder, Repository Brownser, SAP Smartforms. More details at lnk below.
Below is link to SAP website explaining all connection types to allow remote SAP support to customers.
1st. tcode SE03
2nd tcode SCC4
3rd tcode SE06