How replace a component with another

How do we replace a component with another all has the same number of pin e.g.

To replace a non-polar capacitor with the polar one

the simplest way ?
Thanks before

Select symbol. Context menu > Change Symbol. Choose a new symbol from the libraries. Change. Adjust connections if non-symmetrical component. Check that footprint is appropriate and change if necessary with Context menu > Edit Foorprint. Propagate change to PCB with Tools > Update PCB from Schematic. Adjust layout as needed.