I may have said this before, but I think it still applies: Metabunk contains a lot of useful tools (mainly created by Mick), but they are not well signposted on the site. For example, if you know that the 'Zipby' tool exists, you can find it with a search of the site, but if you don't know, you will stay in blissful ignorance. As to 'Sitrec', a simple search for that name produces over 10 pages of results, and finding the best links for the tool itself would be a challenge. The sections on 'Info' and 'How To' on the home page banner don't seem to help on this point. The Forum on 'Practical Debunking' has some relevant entries, but first you need to know that the Forum exists, and then to work your way through it.
As a very basic guide, I suggest that the 'banner' might include an entry for 'Tools', with links to the most relevant items. Off the cuff, I think these should include the 'earth curve calculator', the atmospheric refraction simulator, Zipby, the 'gas and gravity' simulator, and Sitrec (including the 'Gimbal' simulator if that is not a separate tool). There may be others which I have forgotten.