Double click on the Symbol button in the object type palette in the Copyist Tools window to open the symbol palettes. Click on the Adjust palette. The adjustable symbols palette will open, showing you all of Copyist's adjustable symbols.
Select the slur symbol (immediately to the right of the decrescendo). The slur now appears on the Symbol button.
Select the pencil tool from the toolbar. Enter the slur on your page by moving the mouse pointer to where you want the beginning of your slur to appear and then holding down the left mouse button and dragging the mouse to the right. The slur will appear, with four adjustment handles which let you change its shape and move it before you drop it onto the page.
If you want to move the start of the slur, click the left mouse button on the left adjustment handle to select it and then drag the handle by clicking and holding down the left mouse button and moving the mouse, dragging the handle and moving the start of the slur.
If you want to move the end of the slur, click the left mouse button on the right adjustment handle to select it and then drag the handle by clicking and holding down the left mouse button and moving the mouse, dragging the handle and changing the end of the slur.
If you want to change the shape of the slur, click the left mouse button on one of the middle adjustment handles to select it and then drag the handle by clicking and holding down the left mouse button and moving the mouse, dragging the handle and changing the shape of the slur.
Once you have properly adjusted and positioned the slur, click the right mouse button or press the ENTER key to drop the slur on the page. You can press the ESCAPE key if you want to cancel the operation.
You can adjust the slur after you have entered it, by double clicking on the beginning of the slur and selecting Adjust from the edit menu that appears.