Head to your portfolio screen. (Click to zoom image)
Select the portfolio in which you wish to filter transactions in and then chose the "Transactions" tab.
Click on the blue filter icon on this page and a large menu of filter options will pop up.
Filter out a wallet by selecting "Selection or View" on the Wallets line.
Click on the "Select None" option on the top left corner of the menu.
After clicking on the "Select None" option, all the wallets are now deselected. When filtering transactions by wallet, you can select one wallet to see all the transactions coming only from that one wallet or you can select multiple wallets to see the tied transactions. In this example, we are selecting only one wallet to filter transactions.
Click the "Go Back" button on the top right corner of the menu.
Click on the blue "Apply" button on the bottom right corner of the menu and your transactions are now filtered.