shifting a chart or

 
Shifting a Chart to the Specified datetime or to a bar index
hello everyone,
i would like to shift a chart to the specified datetime or bar index. is this possible.
is there a code sample that you could share with me. i always go the bar that i wanted to see by "pageup" and "pagedown" keys. this is very hard when you jump date to date.

and also could you tell me how to show the object specified by name. it is simple in menu by pressing to show button from objects list. but i want it to show by code.

thanks...
 
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