Hi Rodd, Thanks for your support! In PI Part-1, PI-3 Primer-3 we state "...open the HistogramTransformation tool, and select the appropriate view. Grab the New Instance arrow, and drag it directly to this bar. Disabling the STF, Apply or drag this New Instance to the image, and bam! The screen stretch has been applied as a permanent one." We also clearly show that, highlighted by a green callout box. Everything was laid out extremely carefully in the IP4AP.com tutorials. Attention must be paid to the details. I'm hopeful that the other 'always' instances you mention are as easily explainable. Do bear in mind that Part-1 was recorded in v. 1.7 and will look somewhat cosmetically different, though functionality remains largely identical. Never hesitate to contact us privately Rodd if you have other issues, and thanks again!