Lays out a Yagi for your band and tubing, optimises the reflector and director lengths for gain against front/rear, then resonates the driven element at its height over your current ground, and gives you the measurements to cut. "Load into model" replaces the current design (the house and north are kept); everything stays editable afterwards.
A J-pole is a half-wave vertical fed from its bottom end through a shorted quarter-wave stub, so it takes 50 Ω coax with no balun or tuner. Pick the band and what you'll build it from; the solver tunes the stub, radiator and feed tap for a 50 Ω match at your frequency over your current ground and gives you the measurements to cut.
A trap dipole works on two bands. Each arm has an inner wire, a trap (a coil with a capacitor across it, resonant on the high band) and an outer wire. On the high band the traps block current, so only the inner wires work; on the low band they act as loading coils and the outer wires join in. Pick the bands and the capacitor; the solver works out the coil, then trims the inner wires for the high band and the outer wires for the low band, over your current ground and house.
Each band is either a section of one trapped wire (highest band nearest the feed, a trap between each section and the next) or a fan wire of its own from the same feed point. Traps load every band below them, so bands close together (20, 17, 15 m) work far better as fan wires. Press Design: the solver builds the antenna from the feed outwards, then refines every length, over your current ground and house.