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Hi, I’m quite new in piwik and just started to support piwik outsourced project.
I met next situation: we have own plugin for data representation. Call it “Profiles” and plugin is rendered inside “CoreHome” plugin (see attach).

The question is, how could I modify “CoreHome” date picker from “Profiles” plugin?

I think best way is to create a new DIV for the calendar and “Display” it, then “hide” the standard calendar on this page.