Merging keyboard shortcuts
I have found a funny way to do this with Karabiner installed.

Add this to your private.xml:

&lt;?xml version="1.0"?&gt;
&lt;root&gt;
    &lt;item&gt;
        &lt;name&gt;Command sequence&lt;/name&gt;
    &lt;item&gt;
        &lt;name&gt;Option-R&lt;/name&gt;
        &lt;identifier&gt;remap.option_r2command.cfv&lt;/identifier&gt;
        &lt;autogen&gt;
        __KeyToKey__
        KeyCode::OPTION_R,
        Option::KEYTOKEY_BEFORE_KEYDOWN, KeyCode::C, ModifierFlag::COMMAND_L, KeyCode::VK_WAIT_100MS,
        Option::KEYTOKEY_BEFORE_KEYDOWN, KeyCode::F, ModifierFlag::COMMAND_L, KeyCode::VK_WAIT_100MS,
        Option::KEYTOKEY_BEFORE_KEYDOWN, KeyCode::V, ModifierFlag::COMMAND_L, KeyCode::VK_WAIT_100MS,
        &lt;/autogen&gt;
    &lt;/item&gt;
    &lt;/item&gt;
&lt;/root&gt;


Then enable it in Change Key > command sequence > Option-R



A single key press on the right option key will evoke the cascade of command-C/F/V shortcuts.



This doesn't work in Sierra (because Karabiner still isn't Sierra compatible) and depending on the responsiveness of your app you may have to adjust VK_WAIT_100MS  to higher values like VK_WAIT_300MS. You can alternatively use other usually rarely used keys like shift_r. A shortcut like alt_r/opt_rX should also work.

If you want to use alt_r/opt_rX as "shortcut" private.xml should look like this:

&lt;?xml version="1.0"?&gt;
&lt;root&gt;
&lt;/item&gt;
    &lt;item&gt;
    &lt;name&gt;Command sequences&lt;/name&gt;
    &lt;item&gt;
        &lt;name&gt;Option_R-X to Command-C/F/V&lt;/name&gt;
        &lt;identifier&gt;remap.option_r-x2command.cfv&lt;/identifier&gt;
        &lt;autogen&gt;
        __KeyToKey__
        KeyCode::X, ModifierFlag::OPTION_R,
        Option::KEYTOKEY_BEFORE_KEYDOWN, KeyCode::C, ModifierFlag::COMMAND_L, KeyCode::VK_WAIT_100MS,
        Option::KEYTOKEY_BEFORE_KEYDOWN, KeyCode::F, ModifierFlag::COMMAND_L, KeyCode::VK_WAIT_100MS,
        Option::KEYTOKEY_BEFORE_KEYDOWN, KeyCode::V, ModifierFlag::COMMAND_L, KeyCode::VK_WAIT_100MS,
        &lt;/autogen&gt;
    &lt;/item&gt;
    &lt;/item&gt;
&lt;/root&gt;