Hm, on one side: you open the "Tools"-Menu, you go down to the "Actions"-Submenu to open it and click on "Actions Panel" to open the Actions Panel. Than you choose your Action an click on "Play". After it is done, you probably close the "Actions"-Panel.
On the other side: You open the "View"-Menu and click on "Color Samples", than you click on the menu-symbol on top of the "Color Samples"-Panel and click on "Replace Samples". You choose "Load from Disc" or "Select from Collection". Than you choose your collection and click "OK".
Would the Action really make your work much easier? Especially if you think about that you would need different Actions for different color samples? And by the way: How often will you change your color samples? For me that doesn't seem to make much sense.
But have you tried the docking Mode (Menu "View" > "Interface Mode" > "Docking Mode")? In this mode the "Color Samples"-Menu is placed directly in the menu bar. You can open it with just one click, and with a second click on the menu-symbol at the top of this menu you reach the "Replace Samples"-Menu. You can also have the "Color Samples"-Menu permanently on your screen, and dock it to the left or right side of your GUI, if you have space enough.