Hi razal. When you include a Simple Moving Average on a chart, you are selecting the SMA for the period of the chart.
So, on a Daily chart, a 5 period SMA is a 5 day Simple Moving Average.
On a Weekly chart, the 5 period SMA becomes a 5 week SMA.
On a Monthly chart, the 5 period SMA becomes a 5 month SMA.
Some people believe that Weekly signals (on Weekly charts) indicate stronger, more reliable trends than Daily signals (on Daily charts).
In my case, I watch both the Daily and Weekly charts. I prefer to invest in stocks with Weekly charts that show a rising trend.
You can scan for Weekly crosses in the Standard Scan Engine. In the Additional Technical Expressions section the Days can be changed to Weeks by clicking on the menu and selecting Weeks.
Does that help?
Cush