If I want to output multiple clocks from the PLL used in LVDS, can I configure it only in External PLL Mode?

When configuring LVDS from the IP Catalog for Arria® 10 devices, this can be done by checking the "Specify additional output clocks based on existing PLL" checkbox in the PLL Settings tab.
Output Clcoks The Number of Additional Clocks pull-down menu allows up to four additional clocks to be added.

Each frequency is set by outclock*(pll_extra_clock*).

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Category: IP (LVDS)
Tool: Quartus® Prime
Device: Arria® 10