LVDS Signal DC offset and AC Swing

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Hi, which table did you use to get Vocm 0.4/0.5V for C10GX in C10GX Datasheet? Table 17 in the transceiver PHY user guide https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/cyclone-10/ug_cyclone10_xcvr_phy.pdf says that "Output Swing Level (VOD) 0-31 " based on VCCT. If VCCT is 1.0V and if I pick "Output Swing Level (VOD)" as 200 mV, is Vocm still around 0.4V/0.5V or will it be around 100 mV ( mid range of 200 mV ) ? Fifure 166 Transmit buffer in the transceiver PHY user guide https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/hb/cyclone-10/ug_cyclone10_xcvr_phy.pdf shows VCM for TX. Where is this value coming from?

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In addition to the questions above, if Vocm is still 0.4V/0.5V regardless of "Output Swing Level (VOD)", can I change VCCT as 0.5V ( Altera documentation provides options with 0.85V, 0.95V, 1V) or VCCT as 2.V. My objective is to change Vocm into an acceptable range by changing VCCT if there is no option of programming Vocm. "Output Swing Level (VOD)" 200mV is acceptable for my application. For Vocm, I have two options: First option: If I can reduce Vocm between 100 and 200 mV by changing VCCT around 0.5V , it will be good enough. Or Second option: If I can increase Vocm around 1V by changing VCCT as 2V.

Please see my last two posts:

Question 1: is there any relationship between "Output Swing Level (VOD) 0-31 " and Vocm? if VOD is 200 mV or 500 mV, do I still have the same Vocm?

Question 2: If I have the same Vocm regardless of VOD value, Can I change the Vocm by changing VCCT voltage value by decreasing or increasing? is there any limitation in terms of minimum or maximum level for VCCT?