There isn't a 5-year parent visa.
I read this off the GOV.UK newcomer link: https://www.gov.uk/remain-in-uk-family/eligibility
[nonactive] website itself?
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Family life as a parent (5-year route)
You must meet the eligibility requirements for the parent routes and you must also be able to prove that:
you have enough money to adequately support and accommodate you and your dependants without relying on public funds
you have good knowledge of English if you’re 18 or over
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And here's the link to the pdf guide.... newcomer link: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/452915/Appendix_FM_Section_1_0a_5-year_Partner_and_Parent_Routes_August_2015.pdf
[nonactive] I was worried it might reset my ILR clock, which sounds like it will from your point of view, but from what I understand it will be 5+ years... NOT 10+ years... if I were able to switch visa categories... as long as I can meet the 5-year parent visa route... I think the 10-year parent visa route is for immigration officers to use if someone can't meet the 5-year route for some reason.