Due to software limitation, if you use the Intel® Quartus® Prime software version 16.1 and earlier for Intel® Arria® 10 device, you will not find Triple-Speed Ethernet(TSE) transceiver channels in transceiver toolkit, even you turned on option 'Enable Arria 10 transceiver dynamic reconfiguration' .
Device Family: Intel® Arria® 10
Intel Software: Quartus Prime
Version Found: v16.1
Version Fixed: v17.1
Bug ID: 1507529343