User might just execute one transaction/program but STAD might display many entries for that single transaction/program  each entryis a dialog step in SAP term. How many dialog-steps are displayed under a transaction/program is related to program/transaction design and how that transaction is executed.
Connections of the types TCP, ISO-on-TCP, UDP, ISO and S7 connection are configured in the SIMATIC Manager in NetPro. These connections are configured in the same way in STEP 7 (TIA Portal). In STEP 7 (TIA Portal) the S7 connections have to be configured in the Devices and Networks editor, in the Network view.
To put it simply, a Client Bridge links computers while a Wireless Repeater connects routers. These mode changing options can be found in later builds of DD-WRT under the (as seen in the image above). The default mode in DD-WRT is AP, which sets your router up as a standard access point for users. A Client Bridge can connect disparate pieces of a company of home network that were previously unable to connect through a router.