A:AnswerHello Veronica. The keycaps on the K845 are removable, but the switches are not. There are 5 different switch types available for the K845: Red (linear), Blue (clicky), Brown (tactile), MX Cherry Red, and MX Cherry Blue.
A:AnswerHello, Storage! Unfortunately, the K845 does not support onboard memory. If you are looking for a keyboard that has different stored profiles, I would recommend taking a look at our G815, G915, or G915TKL as these are our keyboards with onboard memory. - Maggie from Logitech
A:AnswerI just tested it a minute ago. Got up to 30, but I'm not sure how reliable the test was. I definitely got more than 6 every time. tl;dr more than you can physically press
A:AnswerHi Kevin,
You can actually do both! You can order online or purchase in store! If you ever need assistance, please contact Logitech support on the web. LaShonda from Logitech
A:AnswerHello Daisy66, Unfortunately, the K845 doesn't have a function key lock. For FN Key shortcuts, here's a link to the product support page for the K845 which goes over them: https://support.logi.com/hc/en-us/articles/360026246653-FAQs-K845-Mechanical-Illuminated.