Here, Contracts for Resources and Passengers can be Sped up or Collected & Restarted upon completion.
If a Contract cannot be restarted due to Transport in need of Repair, a depleted Mine, or otherwise, the Restart option will be grayed out as depicted above. Selecting it will give indication of the issue preventing the Contract from being restarted.
Similarly, the Collect option may be grayed out indicating the Warehouse is at capacity. Selecting it will give the option to Sell surplus resources to complete the Contract and Restart it.
Upon Collection, respective timers will be Reset for Passive Income locations while Exchanges can be Restarted, if desired.
Note the Icon indicating that at least one Contract is complete and ready to collect in each of the 3 Categories and that each Category can be sorted by Resource type or by Time remaining on the contract using the tabs on the top of the panel while the option to Collect everything for 1 lies at the bottom.