If a chart opens in "collapsed mode," be sure to click on  "Expanded View" to see the entire chart. You can find a specific individual in most charts by using CTRL-F and typing the name in the search box. The "Interactive Pedigree" allows you to click on the arrow next to any name in this chart to view that person's family and pedigree; click on the name to go to that person's detail page. Note also that some charts (and other content in this database) reflect trees submitted to Y-DNA projects that I have managed at FamilyTreeDNA, notably those in the footer material, and have not been researched by me.