system timer input method flickers

When creating a "Start system timer" action (which sets a normal countdown timer), you are given a horizontal slider which lets you set the countdown time from 1-86400 seconds. This is not a good input method. It is made even worse because the length of the slider depends on the value of the slider (since the value is written to the left of the slider), which causes the value to jump back and forth between two values while you're dragging the slider.

Entering a value like 1200 seconds requires either extreme luck or incredible patience while pressing "up" 1190 times.

Please provide another input method, such as a numeric input field.