I know that if you want to make a SIMILE part, you can put as my picture, quarter notes then convert in Sibelius to SLASH NOTATION and enter the text that says SIMILE. Here is the photo:
The point is that the picture above is when you have 4 quarter notes in the previous bar and you convert to slash simply like that, but what’s happen if in the previous bar you have eighth or sixteenth notes? How do you interpret in slashes for a SIMILE the eighth or sixteenth notes? For example, if 4 slashes represent 4 quarter notes, the for 8 eighth notes should be 8 slashes and for 16 sixteenth notes 16 slashes.