Close of relevant previous period

This indicator puts the previous close value of a higher relevant time frame on the chart, it adepts to the period of the chart. Relevant means that it puts:
Close of previous year in monthly chart
Close of previous month in weekly chart
Close of either previous month of week in daily chart, default setting is week
Close of previous week in 4hourly and 3hourly charts
Close of previous day in 30minute and higher intraday charts
Not bother the user below 30 minutes.