sliding indicator

That's not too hard. Best way to do this is to create it as a genie.

Create a new "Genie" graphic.

Create the outline of the indicator as a rectangle with a black border and a fill color of your choosing (e.g. white or grey).

Create the "needle" of the indicator as a small filled rectangle, or a vertical line of a certain thickness.
Place the needle at the left side of the indicator.

Apply a Horizontal movement animation to the needle: In the movement expression field put a genie parameter (e.g. %ActualValue% ).
For now I assume this will be value between 0 and 100.
Check the Specify Range option and enter 0 and 100 for the Minimum and Maximum
Enter 0 for the At Minimum property. For the At Maximum property, look up the horizontal size (in pixels) of the outline rectangle (e.g. 250).

You can now save this genie, and insert it on any page you want.
When you paste this genie it will ask you to fill in the "ActualValue" parameter. You can enter a fixed number (for testing purposes) or a Variable Tag name, or any expression that returns integer values between 0 and 100.

Hope this helps

Thanks, I'll try.

yet another thing to learn as NOOB 

No worries.
Everybody was a noob once...

If you want to do more projects in the future, you might consider a training course.
There are plenty of e-Learning modules available online as well.

No worries.
Everybody was a noob once...

If you want to do more projects in the future, you might consider a training course.
There are plenty of e-Learning modules available online as well.